In that case a chained PCH will record the updates to the DefinitionData pointer of forward references.
If a forward reference mutated into a definition re-write it into the chained PCH, this is too big of a change.
llvm-svn: 117239
MakeTypeID template function which accepts a type and a function object that returns a TypeIdx.
MakeTypeID is in PCHCommon.h so that it can be used by ASTReader too.
llvm-svn: 111634
Argyrios Kyrtzidis