[clang] [OpenACC][NFC] Add OpenACC Clause AST Nodes/infrastructure (PR #87675)

[Alexey Bataev via cfe-commits]

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@@ -11751,3 +11753,67 @@ void ASTRecordReader::readOMPChildren(OMPChildren *Data) {
   for (unsigned I = 0, E = Data->getNumChildren(); I < E; ++I)
     Data->getChildren()[I] = readStmt();
 }
+
+OpenACCClause *ASTRecordReader::readOpenACCClause() {
+  OpenACCClauseKind ClauseKind = readEnum<OpenACCClauseKind>();
+  SourceLocation BeginLoc = readSourceLocation();
+  SourceLocation EndLoc = readSourceLocation();
+
+  // TODO OpenACC: We don't have these used anywhere, but eventually we should
+  // be constructing the Clauses with them, so these casts can go away.
+  (void)BeginLoc;
+  (void)EndLoc;
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alexey-bataev wrote:

[[maybe_unused]]?

https://github.com/llvm/llvm-project/pull/87675