SystemZ Swift TargetInfo: swifterror support in the backend is broken

Return false for swifterror support until the backend is fixed.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317589 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit e2686b2cbccd63ecf0f1f346b7230bf4aa7d6a7f)
1 file changed