tsan: fix mutex in Go mode
In Go it's legal to unlock from a different goroutine.



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@210358 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: fix CurrentStackId
FuncEnter adds FuncEnter entry to trace that nobody removes later



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@210359 91177308-0d34-0410-b5e6-96231b3b80d8
Un-xfail passing ARM Android tests

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@210360 91177308-0d34-0410-b5e6-96231b3b80d8