[PATCH] [MSan] Implement __sanitizer_print_stack_trace().

[Alexey Samsonov]

================
Comment at: test/msan/print-stack-trace.cc:1
@@ +1,2 @@
+// RUN: %clangxx_msan -O0 %s -o %t && %run %t 2>&1 | FileCheck %s
+// RUN: %clangxx_msan -O3 %s -o %t && %run %t 2>&1 | FileCheck %s
----------------
This test should go to test/sanitizer_common/TestCases (and remove the same test case from ASan suite).

http://reviews.llvm.org/D3899