Changes so that a few tests do not fail when running under guarded malloc.

Guarded malloc emits some messages at the beginning in stderr when enabled.
These messages caused a few tests to fail.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186219 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed