Problems reported:

parser/general/missing_end_bracket:1:8: Can't find '}' to match '{'.
main() {
       ^

beginCompilationUnit(main)
  beginMetadataStar(main)
  endMetadataStar(0)
  beginTopLevelMember(main)
    beginTopLevelMethod(UnmatchedToken({), null)
      handleNoType(UnmatchedToken({))
      handleIdentifier(main, topLevelFunctionDeclaration)
      handleNoTypeVariables(()
      beginFormalParameters((, MemberKind.TopLevelMethod)
      endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
      handleAsyncModifier(null, null)
      beginBlockFunctionBody({)
        handleIdentifier(print, expression)
        handleNoTypeArguments(()
        beginArguments(()
          beginLiteralString("Hello, World!")
          endLiteralString(0, ))
        endArguments(1, (, ))
        handleSend(print, ;)
        handleExpressionStatement(;)
      endBlockFunctionBody(1, {, })
    endTopLevelMethod(main, null, })
  endTopLevelDeclaration()
  handleErrorToken(UnmatchedToken({))
  handleRecoverableError(Message[UnmatchedToken, Can't find '}' to match '{'., null, {string: }, lexeme: {}], UnmatchedToken({), UnmatchedToken({))
endCompilationUnit(1, )