Hide mlock/munlock info message under verbosity flag.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185314 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Remove leading underscores from function names in output tests

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185315 91177308-0d34-0410-b5e6-96231b3b80d8