llvm-project

1c68e0e4 - [clang][ptrauth] reject incorrectly placed ptrauth qualifier (#138376)

[clang][ptrauth] reject incorrectly placed ptrauth qualifier (#138376) When parsing a function pointer typed field we use Parser::ParseTypeQualifierListOpt, but then drops subsequent type attributes and qualifiers unless explicitly handled. There is an existing solution for the _Atomic qualifier, and this PR simply extends that to __ptrauth for now. In future we may want to investigate a more robust mechanism to ensure type qualifiers are not silently dropped so that future type qualifiers do not suffer the same problem.