Fix unnecessary default switch warning

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@276889 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/CodeCompleteConsumer.cpp

@@ -445,8 +445,8 @@ bool PrintingCodeCompleteConsumer::isResultFilteredOut(StringRef Filter,
   case CodeCompletionResult::RK_Pattern: {
     return !StringRef(Result.Pattern->getAsString()).startswith(Filter);
   }
-  default: llvm_unreachable("Unknown code completion result Kind.");
   }
+  llvm_unreachable("Unknown code completion result Kind.");
 }
 
 void