[cfe-commits] [PATCH] Grab bag of Microsoft C++ ABI Mangler fixes

[Charles Davis]

Hi,

This is a grab bag of various fixes to the VC++ name mangler.

- The mangler is now capable of mangling the names of virtual function tables--but not virtual base tables. That needs a serious refactoring of the ManglerContext's interface.
- Local names are now mangled correctly--complete with anonymous numbered scopes. I needed this to make the virtual table test case--which I copied from the Itanium ABI test cases--work.
- Instead of throwing an llvm_unreachable(), unimplemented cases now raise a compiler error. (This was the hardest part, since I needed source locations to give to the DiagnosticsEngine.

This is a big patch, so I wanted to run it past the list before I commit. OK to commit?

Chip
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