More fixes

Author: philnik777

clang/lib/Sema/SemaTemplate.cpp

@@ -3508,7 +3508,7 @@ static QualType builtinCommonReferenceImpl(Sema &S,
     // then the member typedef type denotes that type.
     {
       auto getXRef = [&](QualType T) {
-        static BuiltinTemplateDecl *Quals[12] = {
+        BuiltinTemplateDecl *Quals[12] = {
             S.Context.get__clang_internal_xref_Decl(),
             S.Context.get__clang_internal_xref_constDecl(),
             S.Context.get__clang_internal_xref_volatileDecl(),

libcxx/include/__type_traits/common_reference.h

@@ -30,7 +30,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class...>
-struct common_reference;
+struct _LIBCPP_NO_SPECIALIZATIONS common_reference;
 
 template <class... _Types>
 using common_reference_t = typename common_reference<_Types...>::type;
@@ -130,15 +130,6 @@ struct __common_ref {};
 
 // Note C: For the common_reference trait applied to a parameter pack [...]
 
-template <class...>
-struct _LIBCPP_NO_SPECIALIZATIONS common_reference;
-
-template <class... _Types>
-using common_reference_t = typename common_reference<_Types...>::type;
-
-template <class, class, template <class> class, template <class> class>
-struct basic_common_reference {};
-
 _LIBCPP_DIAGNOSTIC_PUSH
 #  if __has_warning("-Winvalid-specialization")
 _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Winvalid-specialization")