Fix MSVC "not all control paths return a value" warning.

llvm-svn: 362076

diff --git a/clang/include/clang/Basic/ObjCRuntime.h b/clang/include/clang/Basic/ObjCRuntime.h
index 2caebd5..5329b38 100644 (file)
--- a/clang/include/clang/Basic/ObjCRuntime.h
+++ b/clang/include/clang/Basic/ObjCRuntime.h
@@ -443,6 +443,7 @@ public:
     case WatchOS:
       return true;
     }
+    llvm_unreachable("bad kind");
   }
 
   /// Try to parse an Objective-C runtime specification from the given