[clang] [Clang] support storage-class specifiers in C23 compound literals (PR #212559)

[Oleksandr Tarasiuk via cfe-commits]

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@@ -2656,6 +2656,59 @@ bool Parser::tryParseOpenMPArrayShapingCastPart() {
   return !ErrorFound;
 }
 
+bool Parser::isCompoundLiteralStorageClassSpecifier(const Token &Tok) const {
+  if (!getLangOpts().C23)
+    return false;
+  switch (Tok.getKind()) {
+  case tok::kw_constexpr:
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a-tarasyuk wrote:

I've changed this to parse all standard storage-class specifiers and reject those that aren't supported, like `auto`, `typedef`, etc.

https://github.com/llvm/llvm-project/pull/212559