[PATCH] [RFC] Print exact source locations of global variables in ASan error reports.

[Alexey Samsonov]

In offline discussion glider confirmed that he's OK with instrumentation pass and is not familiar enough with Clang code. I've tested this change on a large codebase and found no regressions. Existing reports global-buffer-overflow bugs are extended with source location information as expected. I'm going to submit this now.

http://reviews.llvm.org/D4203