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

[Kostya Serebryany]

looks good once you bump the version of __asan_init, but please also wait for glider's review.

================
Comment at: projects/compiler-rt/lib/asan/asan_interface_internal.h:53
@@ -44,1 +52,3 @@
     uptr has_dynamic_init;   // Non-zero if the global has dynamic initializer.
+    __asan_global_source_location *location;  // Source location of a global,
+                                              // or NULL if it is unknown.
----------------
you need to bump the version of __asan_init_vN

http://reviews.llvm.org/D4203