De-virtualize a method since it doesn't override anything and isn't overridden itself.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@203538 91177308-0d34-0410-b5e6-96231b3b80d8
test: Fix feature test for "native" in lit.cfg

Checking if the host arch is in the triple isn't quite correct. Change
the feature test to match llvm's, which made the same change in r193459.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@203540 91177308-0d34-0410-b5e6-96231b3b80d8
test: Give instrumentation based profiling tests their own directory

These tests are logically related, but they're spread about several
different CodeGen directories. Consolidate them in one place to make
them easier to manage.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@203541 91177308-0d34-0410-b5e6-96231b3b80d8