[Sanitizer] Remove SANITIZER_NEEDS_SEGV from shared sanitizer_common headers.

Otherwise, it can be accidentally redefined when we build specific sanitizer
runtime. This definition should be provided only once - when we build
sanitizer_common library.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@212663 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Force the compiler to generate frame pointer in certain Mac-specific interceptors.

Patch by Kuba Brecka!


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@212664 91177308-0d34-0410-b5e6-96231b3b80d8