Test failures ClangdVFSTest & sanstats/elf.test

Error:

Failing Tests (3):
Extra Tools Unit Tests :: clangd/ClangdTests/ClangdVFSTest.Reparse
Extra Tools Unit Tests :: clangd/ClangdTests/ClangdVFSTest.ReparseOnHeaderChange
LLVM :: tools/sanstats/elf.test

Expected Passes : 40426
Expected Failures : 212
Unsupported Tests : 1434
Unexpected Failures: 3

SVN: 304006
OS: linux

Repro steps:

#!/usr/bin/env bash

Build a clang compiler with libc++ & openmp support