ARM: force soft-float ABI for tests depending on it.

This should fix the ARM bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197555 91177308-0d34-0410-b5e6-96231b3b80d8
DiagnosticInfo: Add missing namespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197556 91177308-0d34-0410-b5e6-96231b3b80d8