llvm-project

0b784269 - [CodeGen][ObjC] Include all referenced protocols in protocol list (#148827)

[CodeGen][ObjC] Include all referenced protocols in protocol list (#148827) When constructing the protocol list in the class metadata generation (`GenerateClass`), only the protocols from the base class are added but not protocols declared in class extensions. This is fixed by using `all_referenced_protocol_{begin, end}` instead of `protocol_{begin, end}`, matching the behaviour on Apple platforms. A unit test is included to check if all protocol metadata was emitted and that no duplication occurs in the protocol list. Fixes https://github.com/gnustep/libobjc2/issues/339 CC: @davidchisnall