re PR c++/17232 ([DR 1640] classes and class template specializations treated…

re PR c++/17232 ([DR 1640] classes and class template specializations treated differently w.r.t. core issue #337)

	PR c++/17232
	PR c++/56642
	* typeck2.c (abstract_virtuals_error_sfinae): Revert complete_type
	change for now.

From-SVN: r196758

gcc/cp/ChangeLog

+2013-03-17  Jason Merrill  <jason@redhat.com>
+
+	PR c++/17232
+	PR c++/56642
+	* typeck2.c (abstract_virtuals_error_sfinae): Revert complete_type
+	change for now.
+
 2013-03-16  Jason Merrill  <jason@redhat.com>
 
 	* decl.c (grokdeclarator): Assert that we won't see a pointer to

gcc/cp/typeck2.c

@@ -265,10 +265,6 @@ abstract_virtuals_error_sfinae (tree decl, tree type, abstract_class_use use,
     return 0;
   type = TYPE_MAIN_VARIANT (type);
 
-  /* In SFINAE context, force instantiation.  */
-  if (!(complain & tf_error))
-    complete_type (type);
-
   /* If the type is incomplete, we register it within a hash table,
      so that we can check again once it is completed. This makes sense
      only for objects for which we have a declaration or at least a