parseUnit(void)
  skipErrorTokens(void)
  listener: beginCompilationUnit(void)
  syntheticPreviousToken(void)
  parseTopLevelDeclarationImpl(, Instance of 'DirectiveContext')
    parseMetadataStar()
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl()
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(, null, , Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(abstract)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(abstract, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, abstract, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(abstract)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(abstract, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, abstract, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(abstract)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(abstract, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, abstract, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(abstract)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(abstract, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, abstract, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(abstract)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(abstract, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, abstract, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(abstract)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(abstract, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, abstract, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(as)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(as, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, as, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(as)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(as, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, as, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(as)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(as, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, as, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(as)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(as, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, as, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(as)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(as, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, as, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(as)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(as, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, as, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(assert)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(assert, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'assert' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: assert}], assert, assert)
                  listener: handleIdentifier(assert, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, assert, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(assert)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(assert, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'assert' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: assert}], assert, assert)
                    listener: handleIdentifier(assert, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, assert, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(assert)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(assert, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'assert' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: assert}], assert, assert)
                    listener: handleIdentifier(assert, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, assert, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(assert)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(assert, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'assert' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: assert}], assert, assert)
                    listener: handleIdentifier(assert, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, assert, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(assert)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(assert, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'assert' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: assert}], assert, assert)
                    listener: handleIdentifier(assert, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, assert, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(assert)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(assert, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'assert' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: assert}], assert, assert)
                    listener: handleIdentifier(assert, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, assert, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(async)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(async, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, async, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(async)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(async, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, async, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(async)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(async, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, async, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(async)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(async, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, async, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(async)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(async, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, async, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(async)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(async, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, async, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(await)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(await, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, await, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(await)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(await, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, await, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(await)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(await, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, await, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(await)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(await, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, await, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(await)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(await, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, await, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(await)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(await, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, await, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(break)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(break, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'break' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: break}], break, break)
                  listener: handleIdentifier(break, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, break, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(break)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(break, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'break' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: break}], break, break)
                    listener: handleIdentifier(break, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, break, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(break)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(break, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'break' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: break}], break, break)
                    listener: handleIdentifier(break, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, break, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(break)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(break, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'break' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: break}], break, break)
                    listener: handleIdentifier(break, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, break, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(break)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(break, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'break' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: break}], break, break)
                    listener: handleIdentifier(break, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, break, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(break)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(break, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'break' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: break}], break, break)
                    listener: handleIdentifier(break, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, break, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(case)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(case, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'case' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: case}], case, case)
                  listener: handleIdentifier(case, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, case, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(case)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(case, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'case' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: case}], case, case)
                    listener: handleIdentifier(case, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, case, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(case)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(case, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'case' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: case}], case, case)
                    listener: handleIdentifier(case, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, case, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(case)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(case, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'case' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: case}], case, case)
                    listener: handleIdentifier(case, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, case, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(case)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(case, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'case' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: case}], case, case)
                    listener: handleIdentifier(case, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, case, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(case)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(case, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'case' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: case}], case, case)
                    listener: handleIdentifier(case, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, case, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(catch)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(catch, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'catch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: catch}], catch, catch)
                  listener: handleIdentifier(catch, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, catch, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(catch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(catch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'catch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: catch}], catch, catch)
                    listener: handleIdentifier(catch, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, catch, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(catch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(catch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'catch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: catch}], catch, catch)
                    listener: handleIdentifier(catch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, catch, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(catch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(catch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'catch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: catch}], catch, catch)
                    listener: handleIdentifier(catch, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, catch, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(catch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(catch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'catch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: catch}], catch, catch)
                    listener: handleIdentifier(catch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, catch, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(catch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(catch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'catch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: catch}], catch, catch)
                    listener: handleIdentifier(catch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, catch, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(class)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(class, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'class' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: class}], class, class)
                  listener: handleIdentifier(class, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, class, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(class)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(class, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'class' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: class}], class, class)
                    listener: handleIdentifier(class, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, class, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(class)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(class, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'class' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: class}], class, class)
                    listener: handleIdentifier(class, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, class, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(class)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(class, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'class' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: class}], class, class)
                    listener: handleIdentifier(class, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, class, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(class)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(class, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'class' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: class}], class, class)
                    listener: handleIdentifier(class, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, class, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(class)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(class, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'class' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: class}], class, class)
                    listener: handleIdentifier(class, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, class, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(const)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(const, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'const' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: const}], const, const)
                  listener: handleIdentifier(const, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, const, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(const)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(const, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'const' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: const}], const, const)
                    listener: handleIdentifier(const, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, const, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(const)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(const, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'const' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: const}], const, const)
                    listener: handleIdentifier(const, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, const, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(const)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(const, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'const' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: const}], const, const)
                    listener: handleIdentifier(const, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, const, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(const)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(const, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'const' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: const}], const, const)
                    listener: handleIdentifier(const, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, const, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(const)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(const, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'const' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: const}], const, const)
                    listener: handleIdentifier(const, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, const, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(continue)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(continue, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'continue' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: continue}], continue, continue)
                  listener: handleIdentifier(continue, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, continue, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(continue)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(continue, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'continue' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: continue}], continue, continue)
                    listener: handleIdentifier(continue, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, continue, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(continue)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(continue, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'continue' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: continue}], continue, continue)
                    listener: handleIdentifier(continue, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, continue, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(continue)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(continue, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'continue' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: continue}], continue, continue)
                    listener: handleIdentifier(continue, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, continue, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(continue)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(continue, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'continue' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: continue}], continue, continue)
                    listener: handleIdentifier(continue, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, continue, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(continue)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(continue, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'continue' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: continue}], continue, continue)
                    listener: handleIdentifier(continue, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, continue, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(covariant)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(covariant, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, covariant, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(covariant)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(covariant, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, covariant, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(covariant)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(covariant, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, covariant, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(covariant)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(covariant, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, covariant, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(covariant)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(covariant, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, covariant, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(covariant)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(covariant, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, covariant, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(default)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(default, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
                  listener: handleIdentifier(default, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, default, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(default)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(default, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
                    listener: handleIdentifier(default, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, default, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(default)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(default, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
                    listener: handleIdentifier(default, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, default, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(default)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(default, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
                    listener: handleIdentifier(default, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, default, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(default)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(default, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
                    listener: handleIdentifier(default, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, default, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(default)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(default, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'default' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: default}], default, default)
                    listener: handleIdentifier(default, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, default, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(deferred)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(deferred, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, deferred, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(deferred)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(deferred, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, deferred, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(deferred)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(deferred, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, deferred, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(deferred)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(deferred, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, deferred, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(deferred)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(deferred, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, deferred, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(deferred)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(deferred, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, deferred, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(do)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(do, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'do' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: do}], do, do)
                  listener: handleIdentifier(do, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, do, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(do)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(do, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'do' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: do}], do, do)
                    listener: handleIdentifier(do, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, do, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(do)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(do, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'do' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: do}], do, do)
                    listener: handleIdentifier(do, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, do, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(do)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(do, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'do' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: do}], do, do)
                    listener: handleIdentifier(do, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, do, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(do)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(do, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'do' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: do}], do, do)
                    listener: handleIdentifier(do, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, do, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(do)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(do, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'do' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: do}], do, do)
                    listener: handleIdentifier(do, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, do, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(dynamic)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(dynamic, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, dynamic, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(dynamic)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(dynamic, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, dynamic, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(dynamic)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(dynamic, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, dynamic, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(dynamic)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(dynamic, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, dynamic, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(dynamic)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(dynamic, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, dynamic, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(dynamic)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(dynamic, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, dynamic, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(else)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(else, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'else' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: else}], else, else)
                  listener: handleIdentifier(else, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, else, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(else)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(else, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'else' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: else}], else, else)
                    listener: handleIdentifier(else, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, else, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(else)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(else, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'else' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: else}], else, else)
                    listener: handleIdentifier(else, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, else, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(else)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(else, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'else' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: else}], else, else)
                    listener: handleIdentifier(else, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, else, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(else)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(else, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'else' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: else}], else, else)
                    listener: handleIdentifier(else, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, else, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(else)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(else, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'else' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: else}], else, else)
                    listener: handleIdentifier(else, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, else, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(enum)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(enum, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'enum' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: enum}], enum, enum)
                  listener: handleIdentifier(enum, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, enum, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(enum)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(enum, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'enum' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: enum}], enum, enum)
                    listener: handleIdentifier(enum, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, enum, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(enum)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(enum, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'enum' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: enum}], enum, enum)
                    listener: handleIdentifier(enum, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, enum, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(enum)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(enum, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'enum' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: enum}], enum, enum)
                    listener: handleIdentifier(enum, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, enum, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(enum)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(enum, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'enum' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: enum}], enum, enum)
                    listener: handleIdentifier(enum, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, enum, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(enum)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(enum, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'enum' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: enum}], enum, enum)
                    listener: handleIdentifier(enum, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, enum, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(export)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(export, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, export, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(export)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(export, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, export, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(export)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(export, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, export, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(export)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(export, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, export, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(export)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(export, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, export, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(export)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(export, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, export, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(extends)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(extends, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'extends' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: extends}], extends, extends)
                  listener: handleIdentifier(extends, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, extends, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extends)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(extends, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'extends' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: extends}], extends, extends)
                    listener: handleIdentifier(extends, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, extends, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extends)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(extends, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'extends' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: extends}], extends, extends)
                    listener: handleIdentifier(extends, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, extends, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extends)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(extends, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'extends' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: extends}], extends, extends)
                    listener: handleIdentifier(extends, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, extends, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extends)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(extends, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'extends' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: extends}], extends, extends)
                    listener: handleIdentifier(extends, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, extends, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extends)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(extends, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'extends' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: extends}], extends, extends)
                    listener: handleIdentifier(extends, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, extends, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(extension)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(extension, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, extension, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extension)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(extension, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, extension, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extension)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(extension, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, extension, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extension)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(extension, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, extension, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extension)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(extension, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, extension, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(extension)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(extension, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, extension, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(external)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(external, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, external, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(external)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(external, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, external, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(external)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(external, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, external, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(external)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(external, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, external, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(external)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(external, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, external, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(external)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(external, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, external, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(factory)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(factory, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, factory, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(factory)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(factory, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, factory, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(factory)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(factory, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, factory, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(factory)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(factory, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, factory, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(factory)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(factory, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, factory, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(factory)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(factory, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, factory, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(false)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(false, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'false' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: false}], false, false)
                  listener: handleIdentifier(false, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, false, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(false)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(false, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'false' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: false}], false, false)
                    listener: handleIdentifier(false, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, false, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(false)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(false, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'false' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: false}], false, false)
                    listener: handleIdentifier(false, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, false, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(false)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(false, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'false' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: false}], false, false)
                    listener: handleIdentifier(false, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, false, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(false)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(false, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'false' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: false}], false, false)
                    listener: handleIdentifier(false, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, false, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(false)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(false, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'false' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: false}], false, false)
                    listener: handleIdentifier(false, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, false, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(final)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(final, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'final' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: final}], final, final)
                  listener: handleIdentifier(final, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, final, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(final)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(final, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'final' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: final}], final, final)
                    listener: handleIdentifier(final, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, final, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(final)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(final, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'final' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: final}], final, final)
                    listener: handleIdentifier(final, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, final, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(final)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(final, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'final' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: final}], final, final)
                    listener: handleIdentifier(final, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, final, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(final)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(final, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'final' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: final}], final, final)
                    listener: handleIdentifier(final, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, final, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(final)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(final, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'final' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: final}], final, final)
                    listener: handleIdentifier(final, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, final, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(finally)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(finally, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'finally' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: finally}], finally, finally)
                  listener: handleIdentifier(finally, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, finally, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(finally)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(finally, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'finally' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: finally}], finally, finally)
                    listener: handleIdentifier(finally, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, finally, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(finally)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(finally, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'finally' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: finally}], finally, finally)
                    listener: handleIdentifier(finally, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, finally, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(finally)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(finally, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'finally' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: finally}], finally, finally)
                    listener: handleIdentifier(finally, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, finally, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(finally)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(finally, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'finally' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: finally}], finally, finally)
                    listener: handleIdentifier(finally, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, finally, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(finally)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(finally, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'finally' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: finally}], finally, finally)
                    listener: handleIdentifier(finally, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, finally, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(for)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(for, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'for' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: for}], for, for)
                  listener: handleIdentifier(for, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, for, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(for)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(for, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'for' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: for}], for, for)
                    listener: handleIdentifier(for, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, for, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(for)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(for, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'for' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: for}], for, for)
                    listener: handleIdentifier(for, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, for, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(for)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(for, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'for' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: for}], for, for)
                    listener: handleIdentifier(for, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, for, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(for)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(for, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'for' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: for}], for, for)
                    listener: handleIdentifier(for, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, for, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(for)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(for, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'for' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: for}], for, for)
                    listener: handleIdentifier(for, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, for, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(Function)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(Function, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, Function, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(Function)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(Function, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, Function, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(Function)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(Function, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, Function, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(Function)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(Function, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, Function, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(Function)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(Function, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, Function, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(Function)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(Function, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, Function, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(get)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(get, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, get, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(get)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(get, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, get, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(get)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(get, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, get, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(get)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(get, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, get, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(get)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(get, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, get, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(get)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(get, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, get, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(hide)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(hide, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, hide, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(hide)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(hide, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, hide, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(hide)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(hide, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, hide, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(hide)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(hide, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, hide, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(hide)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(hide, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, hide, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(hide)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(hide, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, hide, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(if)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(if, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'if' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: if}], if, if)
                  listener: handleIdentifier(if, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, if, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(if)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(if, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'if' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: if}], if, if)
                    listener: handleIdentifier(if, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, if, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(if)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(if, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'if' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: if}], if, if)
                    listener: handleIdentifier(if, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, if, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(if)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(if, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'if' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: if}], if, if)
                    listener: handleIdentifier(if, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, if, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(if)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(if, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'if' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: if}], if, if)
                    listener: handleIdentifier(if, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, if, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(if)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(if, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'if' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: if}], if, if)
                    listener: handleIdentifier(if, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, if, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(implements)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(implements, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, implements, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(implements)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(implements, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, implements, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(implements)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(implements, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, implements, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(implements)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(implements, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, implements, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(implements)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(implements, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, implements, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(implements)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(implements, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, implements, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(import)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(import, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, import, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(import)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(import, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, import, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(import)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(import, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, import, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(import)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(import, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, import, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(import)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(import, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, import, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(import)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(import, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, import, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(in)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(in, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'in' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: in}], in, in)
                  listener: handleIdentifier(in, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, in, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(in)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(in, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'in' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: in}], in, in)
                    listener: handleIdentifier(in, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, in, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(in)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(in, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'in' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: in}], in, in)
                    listener: handleIdentifier(in, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, in, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(in)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(in, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'in' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: in}], in, in)
                    listener: handleIdentifier(in, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, in, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(in)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(in, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'in' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: in}], in, in)
                    listener: handleIdentifier(in, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, in, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(in)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(in, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'in' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: in}], in, in)
                    listener: handleIdentifier(in, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, in, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(inout)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(inout, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, inout, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(inout)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(inout, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, inout, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(inout)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(inout, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, inout, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(inout)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(inout, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, inout, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(inout)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(inout, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, inout, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(inout)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(inout, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, inout, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(interface)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(interface, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, interface, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(interface)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(interface, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, interface, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(interface)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(interface, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, interface, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(interface)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(interface, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, interface, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(interface)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(interface, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, interface, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(interface)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(interface, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, interface, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(is)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(is, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'is' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: is}], is, is)
                  listener: handleIdentifier(is, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, is, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(is)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(is, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'is' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: is}], is, is)
                    listener: handleIdentifier(is, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, is, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(is)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(is, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'is' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: is}], is, is)
                    listener: handleIdentifier(is, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, is, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(is)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(is, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'is' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: is}], is, is)
                    listener: handleIdentifier(is, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, is, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(is)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(is, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'is' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: is}], is, is)
                    listener: handleIdentifier(is, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, is, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(is)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(is, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'is' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: is}], is, is)
                    listener: handleIdentifier(is, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, is, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(late)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(late, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, late, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(late)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(late, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, late, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(late)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(late, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, late, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(late)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(late, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, late, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(late)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(late, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, late, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(late)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(late, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, late, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(library)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(library, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, library, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(library)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(library, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, library, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(library)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(library, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, library, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(library)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(library, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, library, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(library)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(library, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, library, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(library)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(library, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, library, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(mixin)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(mixin, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, mixin, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(mixin)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(mixin, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, mixin, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(mixin)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(mixin, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, mixin, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(mixin)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(mixin, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, mixin, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(mixin)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(mixin, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, mixin, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(mixin)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(mixin, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, mixin, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(native)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(native, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, native, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(native)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(native, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, native, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(native)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(native, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, native, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(native)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(native, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, native, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(native)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(native, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, native, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(native)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(native, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, native, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(new)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(new, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'new' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: new}], new, new)
                  listener: handleIdentifier(new, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, new, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(new)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(new, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'new' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: new}], new, new)
                    listener: handleIdentifier(new, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, new, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(new)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(new, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'new' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: new}], new, new)
                    listener: handleIdentifier(new, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, new, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(new)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(new, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'new' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: new}], new, new)
                    listener: handleIdentifier(new, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, new, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(new)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(new, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'new' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: new}], new, new)
                    listener: handleIdentifier(new, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, new, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(new)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(new, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'new' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: new}], new, new)
                    listener: handleIdentifier(new, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, new, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(null)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(null, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'null' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: null}], null, null)
                  listener: handleIdentifier(null, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(null)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(null, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'null' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: null}], null, null)
                    listener: handleIdentifier(null, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(null)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(null, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'null' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: null}], null, null)
                    listener: handleIdentifier(null, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(null)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(null, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'null' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: null}], null, null)
                    listener: handleIdentifier(null, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(null)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(null, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'null' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: null}], null, null)
                    listener: handleIdentifier(null, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(null)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(null, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'null' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: null}], null, null)
                    listener: handleIdentifier(null, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(of)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(of, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, of, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(of)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(of, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, of, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(of)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(of, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, of, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(of)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(of, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, of, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(of)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(of, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, of, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(of)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(of, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, of, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(on)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(on, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, on, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(on)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(on, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, on, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(on)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(on, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, on, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(on)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(on, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, on, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(on)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(on, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, on, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(on)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(on, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, on, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(operator)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(operator, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, operator, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(operator)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(operator, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, operator, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(operator)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(operator, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, operator, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(operator)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(operator, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, operator, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(operator)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(operator, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, operator, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(operator)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(operator, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, operator, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(out)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(out, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, out, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(out)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(out, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, out, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(out)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(out, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, out, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(out)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(out, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, out, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(out)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(out, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, out, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(out)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(out, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, out, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(part)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(part, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, part, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(part)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(part, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, part, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(part)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(part, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, part, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(part)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(part, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, part, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(part)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(part, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, part, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(part)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(part, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, part, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(patch)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(patch, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, patch, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(patch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(patch, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, patch, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(patch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(patch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, patch, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(patch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(patch, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, patch, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(patch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(patch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, patch, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(patch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(patch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, patch, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(required)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(required, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, required, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(required)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(required, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, required, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(required)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(required, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, required, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(required)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(required, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, required, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(required)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(required, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, required, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(required)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(required, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, required, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(rethrow)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(rethrow, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'rethrow' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: rethrow}], rethrow, rethrow)
                  listener: handleIdentifier(rethrow, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, rethrow, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(rethrow)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(rethrow, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'rethrow' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: rethrow}], rethrow, rethrow)
                    listener: handleIdentifier(rethrow, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, rethrow, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(rethrow)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(rethrow, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'rethrow' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: rethrow}], rethrow, rethrow)
                    listener: handleIdentifier(rethrow, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, rethrow, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(rethrow)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(rethrow, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'rethrow' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: rethrow}], rethrow, rethrow)
                    listener: handleIdentifier(rethrow, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, rethrow, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(rethrow)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(rethrow, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'rethrow' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: rethrow}], rethrow, rethrow)
                    listener: handleIdentifier(rethrow, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, rethrow, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(rethrow)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(rethrow, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'rethrow' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: rethrow}], rethrow, rethrow)
                    listener: handleIdentifier(rethrow, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, rethrow, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(return)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(return, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'return' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: return}], return, return)
                  listener: handleIdentifier(return, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, return, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(return)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(return, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'return' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: return}], return, return)
                    listener: handleIdentifier(return, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, return, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(return)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(return, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'return' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: return}], return, return)
                    listener: handleIdentifier(return, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, return, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(return)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(return, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'return' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: return}], return, return)
                    listener: handleIdentifier(return, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, return, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(return)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(return, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'return' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: return}], return, return)
                    listener: handleIdentifier(return, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, return, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(return)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(return, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'return' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: return}], return, return)
                    listener: handleIdentifier(return, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, return, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(set)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(set, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, set, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(set)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(set, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, set, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(set)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(set, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, set, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(set)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(set, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, set, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(set)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(set, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, set, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(set)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(set, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, set, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(show)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(show, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, show, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(show)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(show, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, show, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(show)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(show, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, show, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(show)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(show, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, show, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(show)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(show, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, show, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(show)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(show, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, show, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(source)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(source, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, source, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(source)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(source, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, source, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(source)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(source, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, source, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(source)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(source, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, source, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(source)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(source, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, source, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(source)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(source, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, source, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(static)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(static, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, static, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(static)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(static, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, static, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(static)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(static, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, static, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(static)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(static, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, static, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(static)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(static, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, static, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(static)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(static, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, static, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(super)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(super, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'super' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: super}], super, super)
                  listener: handleIdentifier(super, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, super, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(super)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(super, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'super' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: super}], super, super)
                    listener: handleIdentifier(super, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, super, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(super)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(super, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'super' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: super}], super, super)
                    listener: handleIdentifier(super, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, super, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(super)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(super, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'super' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: super}], super, super)
                    listener: handleIdentifier(super, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, super, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(super)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(super, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'super' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: super}], super, super)
                    listener: handleIdentifier(super, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, super, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(super)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(super, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'super' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: super}], super, super)
                    listener: handleIdentifier(super, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, super, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(switch)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(switch, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'switch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: switch}], switch, switch)
                  listener: handleIdentifier(switch, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, switch, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(switch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(switch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'switch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: switch}], switch, switch)
                    listener: handleIdentifier(switch, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, switch, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(switch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(switch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'switch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: switch}], switch, switch)
                    listener: handleIdentifier(switch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, switch, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(switch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(switch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'switch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: switch}], switch, switch)
                    listener: handleIdentifier(switch, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, switch, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(switch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(switch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'switch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: switch}], switch, switch)
                    listener: handleIdentifier(switch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, switch, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(switch)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(switch, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'switch' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: switch}], switch, switch)
                    listener: handleIdentifier(switch, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, switch, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(sync)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(sync, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, sync, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(sync)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(sync, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, sync, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(sync)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(sync, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, sync, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(sync)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(sync, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, sync, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(sync)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(sync, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, sync, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(sync)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(sync, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, sync, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(this)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(this, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'this' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: this}], this, this)
                  listener: handleIdentifier(this, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, this, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(this)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(this, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'this' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: this}], this, this)
                    listener: handleIdentifier(this, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, this, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(this)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(this, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'this' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: this}], this, this)
                    listener: handleIdentifier(this, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, this, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(this)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(this, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'this' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: this}], this, this)
                    listener: handleIdentifier(this, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, this, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(this)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(this, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'this' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: this}], this, this)
                    listener: handleIdentifier(this, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, this, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(this)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(this, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'this' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: this}], this, this)
                    listener: handleIdentifier(this, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, this, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(throw)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(throw, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'throw' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: throw}], throw, throw)
                  listener: handleIdentifier(throw, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, throw, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(throw)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(throw, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'throw' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: throw}], throw, throw)
                    listener: handleIdentifier(throw, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, throw, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(throw)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(throw, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'throw' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: throw}], throw, throw)
                    listener: handleIdentifier(throw, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, throw, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(throw)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(throw, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'throw' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: throw}], throw, throw)
                    listener: handleIdentifier(throw, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, throw, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(throw)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(throw, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'throw' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: throw}], throw, throw)
                    listener: handleIdentifier(throw, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, throw, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(throw)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(throw, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'throw' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: throw}], throw, throw)
                    listener: handleIdentifier(throw, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, throw, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(true)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(true, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'true' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: true}], true, true)
                  listener: handleIdentifier(true, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, true, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(true)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(true, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'true' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: true}], true, true)
                    listener: handleIdentifier(true, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, true, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(true)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(true, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'true' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: true}], true, true)
                    listener: handleIdentifier(true, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, true, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(true)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(true, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'true' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: true}], true, true)
                    listener: handleIdentifier(true, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, true, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(true)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(true, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'true' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: true}], true, true)
                    listener: handleIdentifier(true, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, true, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(true)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(true, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'true' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: true}], true, true)
                    listener: handleIdentifier(true, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, true, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(try)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(try, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'try' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: try}], try, try)
                  listener: handleIdentifier(try, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, try, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(try)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(try, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'try' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: try}], try, try)
                    listener: handleIdentifier(try, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, try, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(try)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(try, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'try' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: try}], try, try)
                    listener: handleIdentifier(try, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, try, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(try)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(try, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'try' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: try}], try, try)
                    listener: handleIdentifier(try, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, try, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(try)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(try, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'try' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: try}], try, try)
                    listener: handleIdentifier(try, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, try, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(try)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(try, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'try' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: try}], try, try)
                    listener: handleIdentifier(try, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, try, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(typedef)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(typedef, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, typedef, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(typedef)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(typedef, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, typedef, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(typedef)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(typedef, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, typedef, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(typedef)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(typedef, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, typedef, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(typedef)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(typedef, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, typedef, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(typedef)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(typedef, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, typedef, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(var)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(var, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'var' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: var}], var, var)
                  listener: handleIdentifier(var, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, var, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(var)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(var, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'var' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: var}], var, var)
                    listener: handleIdentifier(var, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, var, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(var)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(var, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'var' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: var}], var, var)
                    listener: handleIdentifier(var, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, var, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(var)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(var, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'var' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: var}], var, var)
                    listener: handleIdentifier(var, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, var, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(var)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(var, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'var' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: var}], var, var)
                    listener: handleIdentifier(var, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, var, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(var)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(var, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'var' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: var}], var, var)
                    listener: handleIdentifier(var, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, var, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(void)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(void, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'void' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: void}], void, void)
                  listener: handleIdentifier(void, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, void, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(void)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(void, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'void' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: void}], void, void)
                    listener: handleIdentifier(void, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, void, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(void)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(void, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'void' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: void}], void, void)
                    listener: handleIdentifier(void, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, void, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(void)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(void, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'void' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: void}], void, void)
                    listener: handleIdentifier(void, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, void, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(void)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(void, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'void' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: void}], void, void)
                    listener: handleIdentifier(void, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, void, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(void)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(void, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'void' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: void}], void, void)
                    listener: handleIdentifier(void, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, void, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(while)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(while, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'while' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: while}], while, while)
                  listener: handleIdentifier(while, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, while, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(while)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(while, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'while' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: while}], while, while)
                    listener: handleIdentifier(while, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, while, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(while)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(while, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'while' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: while}], while, while)
                    listener: handleIdentifier(while, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, while, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(while)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(while, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'while' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: while}], while, while)
                    listener: handleIdentifier(while, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, while, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(while)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(while, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'while' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: while}], while, while)
                    listener: handleIdentifier(while, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, while, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(while)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(while, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'while' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: while}], while, while)
                    listener: handleIdentifier(while, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, while, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(with)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  reportRecoverableErrorWithToken(with, Instance of 'Template<(Token) => Message>')
                    listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'with' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: with}], with, with)
                  listener: handleIdentifier(with, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, with, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(with)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(with, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'with' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: with}], with, with)
                    listener: handleIdentifier(with, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, with, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(with)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(with, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'with' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: with}], with, with)
                    listener: handleIdentifier(with, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, with, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(with)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(with, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'with' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: with}], with, with)
                    listener: handleIdentifier(with, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, with, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(with)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(with, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'with' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: with}], with, with)
                    listener: handleIdentifier(with, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, with, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(with)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    reportRecoverableErrorWithToken(with, Instance of 'Template<(Token) => Message>')
                      listener: handleRecoverableError(Message[ExpectedIdentifierButGotKeyword, 'with' can't be used as an identifier because it's a keyword., Try renaming this to be an identifier that isn't a keyword., {lexeme: with}], with, with)
                    listener: handleIdentifier(with, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, with, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseFormalParameter((, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
                parseMetadataStar(()
                  listener: beginMetadataStar(int)
                  listener: endMetadataStar(0)
                listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                listener: handleIdentifier(int, typeReference)
                listener: handleNoTypeArguments(yield)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  inPlainSync()
                  listener: handleIdentifier(yield, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, yield, null, null, FormalParameterKind.mandatory, MemberKind.TopLevelMethod)
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(yield)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(yield, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, yield, null, null, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalPositionalParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters([)
                parseFormalParameter([, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                  parseMetadataStar([)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(yield)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(yield, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, yield, 42, 42, FormalParameterKind.optionalPositional, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, [, ])
              ensureCloseParen(], ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(yield)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(yield, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, yield, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(yield)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(yield, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, yield, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration(void)
  parseTopLevelDeclarationImpl(}, Instance of 'DirectiveContext')
    parseMetadataStar(})
      listener: beginMetadataStar(void)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl(})
      listener: beginTopLevelMember(void)
      parseTopLevelMethod(}, null, }, Instance of 'VoidType', null, test, false)
        listener: beginTopLevelMethod(}, null)
        listener: handleVoidKeyword(void)
        ensureIdentifierPotentiallyRecovered(void, topLevelFunctionDeclaration, false)
          listener: handleIdentifier(test, topLevelFunctionDeclaration)
        parseMethodTypeVar(test)
          listener: handleNoTypeVariables(()
        parseGetterOrFormalParameters(test, test, false, MemberKind.TopLevelMethod)
          parseFormalParameters(test, MemberKind.TopLevelMethod)
            parseFormalParametersRest((, MemberKind.TopLevelMethod)
              listener: beginFormalParameters((, MemberKind.TopLevelMethod)
              parseOptionalNamedParameters((, MemberKind.TopLevelMethod)
                listener: beginOptionalFormalParameters({)
                parseFormalParameter({, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                  parseMetadataStar({)
                    listener: beginMetadataStar(int)
                    listener: endMetadataStar(0)
                  listener: beginFormalParameter(int, MemberKind.TopLevelMethod, null, null, null)
                  listener: handleIdentifier(int, typeReference)
                  listener: handleNoTypeArguments(yield)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    inPlainSync()
                    listener: handleIdentifier(yield, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, yield, 42, 42, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody(), false, false)
          listener: beginBlockFunctionBody({)
          notEofOrValue(}, })
          listener: endBlockFunctionBody(0, {, })
        listener: endTopLevelMethod(void, null, })
  listener: endTopLevelDeclaration()
  reportAllErrorTokens(void)
  listener: endCompilationUnit(414, )