[clang] [Clang] Implement consteval blocks for C++26 (PR #188665)

[via cfe-commits]

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@@ -1917,6 +1917,15 @@ Parser::DeclGroupPtrTy Parser::ParseDeclaration(DeclaratorContext Context,
     ProhibitAttributes(DeclSpecAttrs);
     SingleDecl = ParseStaticAssertDeclaration(DeclEnd);
     break;
+  case tok::kw_consteval:
+    if (NextToken().is(tok::l_brace)) {
+      ProhibitAttributes(DeclAttrs);
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Sirraide wrote:

Ah yeah, I always forget those...

https://github.com/llvm/llvm-project/pull/188665