Updating this test case to appease build bots which support ANSI escape sequences (unlike my dev box).

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@203014 91177308-0d34-0410-b5e6-96231b3b80d8
[-Wunreachable-code] generalize configuration value checking to all comparison operators.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@203016 91177308-0d34-0410-b5e6-96231b3b80d8