Fix bug #18350. Add tests for tuples of all the smart pointers (except auto_ptr)

llvm-svn: 207307
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 85d3e7a7299f0db3286cf0b611bdfac79f39e967
diff --git a/include/memory b/include/memory
index da8786a..d19bb7f 100644
--- a/include/memory
+++ b/include/memory
@@ -2401,13 +2401,14 @@
 struct __same_or_less_cv_qualified_imp<_Ptr1, _Ptr2, false>
     : false_type {};
 
-template <class _Ptr1, class _Ptr2, bool = is_scalar<_Ptr1>::value &&
-                                         !is_pointer<_Ptr1>::value>
+template <class _Ptr1, class _Ptr2, bool = is_pointer<_Ptr1>::value ||
+                                           is_same<_Ptr1, _Ptr2>::value ||
+                                           __has_element_type<_Ptr1>::value>
 struct __same_or_less_cv_qualified
     : __same_or_less_cv_qualified_imp<_Ptr1, _Ptr2> {};
 
 template <class _Ptr1, class _Ptr2>
-struct __same_or_less_cv_qualified<_Ptr1, _Ptr2, true>
+struct __same_or_less_cv_qualified<_Ptr1, _Ptr2, false>
     : false_type {};
 
 // default_delete