Change Details

When calculating the ODR hash of a `FunctionNoProtoType` do not include qualifiers derived from `FastTypeQuals`. These are only defined in the constructor for `FunctionProtoType`: https://github.com/llvm/llvm-project/blob/main/clang/lib/AST/Type.cpp#L3207 This change ensures the ODR hash and PCM output is stable for any modules containing `FunctionNoProtoType`s.

When initializing FunctionNoProtoType types, zero out the type qualifiers. This will ensure the ODR hash remains stable as it hashes the values for these qualifiers for all function types.

When calculating the ODR hash of a `initializing FunctionNoProtoType` do notype types, zero out the type include qualifiers derived from `FastTypeQuals`iers. These are onlyThis will ensure the ODR hash remains stable as it defined in the constructor for `FunctionProtoType`: https://github.com/llvm/llvm-project/blob/main/clang/lib/AST/Type.cpp#L3207 This change ensures the ODR hash and PCM output is stable forhashes the values for these qualifiers for all function types. any modules containing `FunctionNoProtoType`s.