[CMake] Build sanitizer unit tests with -std=c++11

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204234 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] use some c++11 to simplify the code (we can now). Fix one place where a mutex acquisition stack trace was not properly remembered

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204237 91177308-0d34-0410-b5e6-96231b3b80d8
[CMake] Fix build of ASan tests on Mac

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204238 91177308-0d34-0410-b5e6-96231b3b80d8
[Make] Build sanitizer runtimes with -std=c++11

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204239 91177308-0d34-0410-b5e6-96231b3b80d8