[PATCH] Add diagnostic capabilities in LLVM (frontend part)

[Quentin Colombet]

  Hi Hal,

  I have looked into CodeGenModule::GetOrCreateLLVMFunction and we can indeed map the LLVM function with the original (demangled) name.
  However, I have not seen a way to access this information from the BackendConsumer (i.e., the class that is called back by the backend diagnostics).
  Am I missing something?

  Thanks.

  -Quentin

http://llvm-reviews.chandlerc.com/D2430