[clang] [clang] Implement `__is_layout_compatible` (PR #81506)

[Vlad Serebrennikov via cfe-commits]

================
@@ -1717,6 +1717,7 @@ void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind,
           tok::kw___is_fundamental,
           tok::kw___is_integral,
           tok::kw___is_interface_class,
+          tok::kw___is_layout_compatible,
----------------
Endilll wrote:

Done

https://github.com/llvm/llvm-project/pull/81506