[PATCH] [compiler-rt] Remove -fomit-frame-pointer from sanitizers CFLAGS

[Evgeniy Stepanov]

> For a particular interceptor or a set of interceptors the problem can be solved by adding something like "volatile uptr x = GET_CALLER_PC();"

This sounds like a very good idea. GET_CALLER_PC, at least in the current implementation, enables frame pointer in the calling function. There are only a few interceptors that really need it.

http://reviews.llvm.org/D4305