Remove all DISABLE lines from tests

There's no evidence that a 'DISABLE' directive ever existed.

Let's see if anything breaks..

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@196733 91177308-0d34-0410-b5e6-96231b3b80d8
Re-enable ms inline asm parser test.

LLVM r196044 should make it pass.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@196734 91177308-0d34-0410-b5e6-96231b3b80d8