[clang] [OpenACC] Implement beginning parts of the 'parallel' Sema impl (PR #81659)

[Alexey Bataev via cfe-commits]

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@@ -745,9 +745,14 @@ bool Parser::ParseOpenACCClause(OpenACCDirectiveKind DirKind) {
            << getCurToken().getIdentifierInfo();
 
   // Consume the clause name.
-  ConsumeToken();
+  SourceLocation ClauseLoc = ConsumeToken();
+
+  bool ParamsResult = ParseOpenACCClauseParams(DirKind, Kind);
 
-  return ParseOpenACCClauseParams(DirKind, Kind);
+  // TODO OpenACC: this whole function should return a 'clause' type optional
+  // instead of bool, so we likely want to return the clause here.
+  getActions().ActOnOpenACCClause(Kind, ClauseLoc);
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alexey-bataev wrote:

This one does not nothing right now, just emit error message. Can you split it and implement in a separate patch?

https://github.com/llvm/llvm-project/pull/81659