[PATCH] Add support for missed and analysis optimization remarks.

[Quentin Colombet]

Hi Diego,

This overall LGTM.
I have one concern though.
The LLVMContext begins to have a lot of its API dedicated to diagnostic report. All those helper functions calls LLVMContext::diagnose and I would prefer to have just this specific method (emitError being the exception) than having a profusion of such helpers in that class.
I think it would make sense to have those helper functions in the DiagnosticInfo header. That way it would be better self contained.
This is my 2 cents.

What do you think?

Thanks,
-Quentin

http://reviews.llvm.org/D3682