Change CodeGenModule to only create ObjC runtime for ObjC files
 - Changed CodeGenModule::getObjCRuntime to return reference.
 - Added CodeGenModule::hasObjCRuntime predicate.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54645 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed