Address comments

Author: philnik777

clang/include/clang/Basic/AttrDocs.td

@@ -1158,7 +1158,7 @@ Query for this feature with ``__has_attribute(diagnose_if)``.
 def NoSpecializationsDocs : Documentation {
   let Category = DocCatDecl;
   let Content = [{
-``[[clang::no_specializations]]`` can be applied to function, class or variable
+``[[clang::no_specializations]]`` can be applied to function, class, or variable
 templates which should not be explicitly specialized by users. This is primarily
 used to diagnose user specializations of standard library type traits.
   }];

clang/include/clang/Basic/DiagnosticGroups.td

@@ -475,7 +475,6 @@ def ExpansionToDefined : DiagGroup<"expansion-to-defined">;
 def FlagEnum : DiagGroup<"flag-enum">;
 def IncrementBool : DiagGroup<"increment-bool", [DeprecatedIncrementBool]>;
 def InfiniteRecursion : DiagGroup<"infinite-recursion">;
-def InvalidSpecialization : DiagGroup<"invalid-specialization">;
 def PureVirtualCallFromCtorDtor: DiagGroup<"call-to-pure-virtual-from-ctor-dtor">;
 def GNUImaginaryConstant : DiagGroup<"gnu-imaginary-constant">;
 def IgnoredGCH : DiagGroup<"ignored-gch">;
@@ -1590,4 +1589,3 @@ def ExplicitSpecializationStorageClass : DiagGroup<"explicit-specialization-stor
 
 // A warning for options that enable a feature that is not yet complete
 def ExperimentalOption : DiagGroup<"experimental-option">;
-

clang/include/clang/Basic/DiagnosticSemaKinds.td

@@ -5447,7 +5447,7 @@ def note_dependent_function_template_spec_discard_reason : Note<
   "namespace; did you mean to explicitly qualify the specialization?}1}0">;
 def warn_invalid_specialization : Warning<
   "%0 cannot be specialized%select{|: %2}1">,
-  DefaultError, InGroup<InvalidSpecialization>;
+  DefaultError, InGroup<DiagGroup<"invalid-specialization">>;
 def note_marked_here : Note<"marked %0 here">;
 
 // C++ class template specializations and out-of-line definitions