re PR c++/13113 (Nice warning about &(X::m) lost)

re PR c++/13113 (Nice warning about &(X::m) lost)

	PR c++/13113
	* init.c (build_offset_ref): Improve error recovery for invalid
	uses of non-static member functions.

	PR c++/13854
	* cp-tree.h (cp_build_type_attribute_variant): New function.
	* class.c (build_clone): Use cp_build_type_attribute_variant.
	* decl.c (duplicate_decls): Likewise.
	* pt.c (copy_default_args_to_explicit_spec): Likewise.
	(tsubst_function_type): Likewise.
	* tree.c (build_exception_variant): Check attributes before
	concluding that two types are the same.
	(cp_build_type-attribute_variant): New method.
	* typeck.c (merge_types): Use cp_build_type_attribute_variant.

	PR c++/13907
	* call.c (convert_class_to_reference): Keep better track of
	pedantically invalid user-defined conversions.

	PR c++/13113
	* g++.old-deja/g++.mike/net36.C: Adjust error messages.

	PR c++/13854
	* g++.dg/ext/attrib13.C: New test.

	PR c++/13907
	* g++.dg/conversion/op2.C: New test.

From-SVN: r77127