Minor refactoring for previous patch for // rdar://10735698



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152071 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/DiagnosticGroups.td b/include/clang/Basic/DiagnosticGroups.td
index cb59cba..43992b7 100644
--- a/include/clang/Basic/DiagnosticGroups.td
+++ b/include/clang/Basic/DiagnosticGroups.td
@@ -134,6 +134,7 @@
 def ObjCPropertyImpl : DiagGroup<"objc-property-implementation">;
 def ObjCMissingSuperCalls : DiagGroup<"objc-missing-super-calls">;
 def ObjCRetainBlockProperty : DiagGroup<"objc-noncopy-retain-block-property">;
+def BlockMissingReturnType : DiagGroup<"block-missing-explicit-return-type">;
 def ObjCReadonlyPropertyHasSetter : DiagGroup<"objc-readonly-with-setter-property">;
 def Packed : DiagGroup<"packed">;
 def Padded : DiagGroup<"padded">;
diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td
index 36c302f..eded154 100644
--- a/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/include/clang/Basic/DiagnosticSemaKinds.td
@@ -4955,8 +4955,7 @@
   "block cannot return %select{array|function}0 type %1">;
 def warn_block_missing_return_type : Warning<
   "block literal is missing explicit return type and "
-  "returns non-void values">, 
-  InGroup<DiagGroup<"block-missing-explicit-return-type">>, DefaultIgnore;
+  "returns non-void values">, InGroup<BlockMissingReturnType>, DefaultIgnore;
 
 // Builtin annotation string.
 def err_builtin_annotation_not_string_constant : Error<