[Clang][Sema] Add __builtin_infer_alloc_token() declaration and semantic checks#163638

melver merged 15 commits intomainllvm/llvm-project:mainfrom

users/melver/spr/clangsema-add-__builtin_infer_alloc_token-declaration-and-semantic-checksllvm/llvm-project:users/melver/spr/clangsema-add-__builtin_infer_alloc_token-declaration-and-semantic-checksCopy head branch name to clipboard