Problems reported:

parser/error_recovery/issue_39024.crash:1:3: Expected '>' after this.
n<S e(
  ^

parser/error_recovery/issue_39024.crash:1:7: Expected an identifier, but got ''.
n<S e(
      ^...

parser/error_recovery/issue_39024.crash:1:7: A function declaration needs an explicit list of parameters.
n<S e(
      ^...

parser/error_recovery/issue_39024.crash:1:7: Expected a function body, but got ''.
n<S e(
      ^...

parser/error_recovery/issue_39024.crash:1:6: Can't find ')' to match '('.
n<S e(
     ^

parser/error_recovery/issue_39024.crash:1:2: Can't find '>' to match '<'.
n<S e(
 ^

beginCompilationUnit(n)
  beginMetadataStar(n)
  endMetadataStar(0)
  beginTopLevelMember(n)
    beginTopLevelMethod(UnmatchedToken(<), null)
      handleIdentifier(n, typeReference)
      beginTypeArguments(<)
        handleIdentifier(S, typeReference)
        handleNoTypeArguments(e)
        handleType(S, null)
        handleRecoverableError(Message[ExpectedAfterButGot, Expected '>' after this., null, {string: >}], S, S)
      endTypeArguments(1, <, >)
      handleType(n, null)
      handleRecoverableError(Message[ExpectedIdentifier, Expected an identifier, but got ''., Try inserting an identifier before ''., {token: }], , )
      handleIdentifier(, topLevelFunctionDeclaration)
      handleNoTypeVariables()
      handleRecoverableError(MissingFunctionParameters, , )
      beginFormalParameters((, MemberKind.TopLevelMethod)
      endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
      handleAsyncModifier(null, null)
      handleRecoverableError(Message[ExpectedFunctionBody, Expected a function body, but got ''., null, {token: }], , )
      handleInvalidFunctionBody({)
    endTopLevelMethod(n, null, })
  endTopLevelDeclaration()
  handleErrorToken(UnmatchedToken(())
  handleRecoverableError(Message[UnmatchedToken, Can't find ')' to match '('., null, {string: ), token: (}], UnmatchedToken((), UnmatchedToken(())
  handleErrorToken(UnmatchedToken(<))
  handleRecoverableError(Message[UnmatchedToken, Can't find '>' to match '<'., null, {string: >, token: <}], UnmatchedToken(<), UnmatchedToken(<))
endCompilationUnit(1, )