tsan: add check for invalid fd


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@172060 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] add standalone_malloc_test

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@172061 91177308-0d34-0410-b5e6-96231b3b80d8