pkg/front_end/parser_testcases/error_recovery/keyword_named_formal_parameter_prime.dart.intertwined.expect

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(abstractX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(abstractX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, abstractX, 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(abstractX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(abstractX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, abstractX, 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(abstractX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(abstractX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, abstractX, 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(abstractX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(abstractX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, abstractX, 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(abstractX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(abstractX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, abstractX, 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(abstractX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(abstractX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, abstractX, 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(asX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(asX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, asX, 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(asX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, asX, 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(asX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, asX, 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(asX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, asX, 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(asX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, asX, 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(asX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, asX, 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(assertX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(assertX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, assertX, 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(assertX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(assertX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, assertX, 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(assertX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(assertX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, assertX, 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(assertX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(assertX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, assertX, 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(assertX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(assertX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, assertX, 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(assertX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(assertX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, assertX, 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(asyncX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(asyncX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, asyncX, 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(asyncX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asyncX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, asyncX, 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(asyncX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asyncX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, asyncX, 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(asyncX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asyncX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, asyncX, 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(asyncX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asyncX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, asyncX, 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(asyncX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(asyncX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, asyncX, 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(awaitX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(awaitX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, awaitX, 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(awaitX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(awaitX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, awaitX, 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(awaitX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(awaitX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, awaitX, 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(awaitX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(awaitX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, awaitX, 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(awaitX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(awaitX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, awaitX, 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(awaitX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(awaitX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, awaitX, 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(breakX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(breakX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, breakX, 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(breakX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(breakX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, breakX, 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(breakX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(breakX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, breakX, 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(breakX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(breakX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, breakX, 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(breakX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(breakX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, breakX, 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(breakX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(breakX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, breakX, 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(caseX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(caseX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, caseX, 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(caseX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(caseX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, caseX, 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(caseX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(caseX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, caseX, 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(caseX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(caseX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, caseX, 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(caseX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(caseX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, caseX, 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(caseX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(caseX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, caseX, 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(catchX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(catchX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, catchX, 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(catchX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(catchX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, catchX, 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(catchX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(catchX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, catchX, 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(catchX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(catchX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, catchX, 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(catchX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(catchX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(:)
                    parsePrecedenceExpression(:, 1, true)
                      parseUnaryExpression(:, true)
                        parsePrimary(:, expression)
                          parseLiteralInt(:)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(:, })
                  listener: endFormalParameter(null, null, null, catchX, 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(catchX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(catchX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, })
                  listener: endFormalParameter(null, null, null, catchX, 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(classX)
                listener: handleType(int, null)
                ensureIdentifier(int, formalParameterDeclaration)
                  listener: handleIdentifier(classX, formalParameterDeclaration)
                listener: handleFormalParameterWithoutValue())
                listener: endFormalParameter(null, null, null, classX, 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(classX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(classX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(])
                  listener: endFormalParameter(null, null, null, classX, 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(classX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(classX, formalParameterDeclaration)
                  listener: beginFormalParameterDefaultValueExpression()
                  parseExpression(=)
                    parsePrecedenceExpression(=, 1, true)
                      parseUnaryExpression(=, true)
                        parsePrimary(=, expression)
                          parseLiteralInt(=)
                            listener: handleLiteralInt(42)
                  listener: endFormalParameterDefaultValueExpression()
                  listener: handleValuedFormalParameter(=, ])
                  listener: endFormalParameter(null, null, null, classX, 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(classX)
                  listener: handleType(int, null)
                  ensureIdentifier(int, formalParameterDeclaration)
                    listener: handleIdentifier(classX, formalParameterDeclaration)
                  listener: handleFormalParameterWithoutValue(})
                  listener: endFormalParameter(null, null, null, classX, null, null, FormalParameterKind.optionalNamed, MemberKind.TopLevelMethod)
                listener: endOptionalFormalParameters(1, {, })
              ensureCloseParen(}, ()
              listener: endFormalParameters(1, (, ), MemberKind.TopLevelMethod)
        parseAsyncModifierOpt())
          listener: handleAsyncModifier(null, null)
          inPlainSync()
        parseFunctionBody