Add the ObjFW runtime.  Patch by Jonathan Schleifer!

llvm-svn: 160102
diff --git a/clang/lib/CodeGen/CGException.cpp b/clang/lib/CodeGen/CGException.cpp
index 2fdc74c..ba9c296 100644
--- a/clang/lib/CodeGen/CGException.cpp
+++ b/clang/lib/CodeGen/CGException.cpp
@@ -188,6 +188,7 @@
     return EHPersonality::NeXT_ObjC;
   case ObjCRuntime::GNUstep:
   case ObjCRuntime::GCC:
+  case ObjCRuntime::ObjFW:
     return EHPersonality::GNU_ObjC;
   }
   llvm_unreachable("bad runtime kind");
@@ -219,6 +220,7 @@
   // The GCC runtime's personality function inherently doesn't support
   // mixed EH.  Use the C++ personality just to avoid returning null.
   case ObjCRuntime::GCC:
+  case ObjCRuntime::ObjFW: // XXX: this will change soon
     return EHPersonality::GNU_ObjC;
   case ObjCRuntime::GNUstep:
     return EHPersonality::GNU_ObjCXX;