[sanitizer] Intercept getgrnam{_r}, getgrgid{_r}.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@180091 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Disable AddressSanitizer.AllocDeallocMismatch on Darwin.
See https://code.google.com/p/address-sanitizer/issues/detail?id=131.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@180093 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Make wait.cc more Darwin-compatible: fix the header name and the CHECK patterns.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@180097 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r180082 and add a test for SetEnv function

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@180098 91177308-0d34-0410-b5e6-96231b3b80d8