Core issue 287, PR c++/7639

Core issue 287, PR c++/7639

	Core issue 287, PR c++/7639
	* cp-tree.h (lang_type_class): Add decl_list field.
	(CLASSTYPE_DECL_LIST): New macro.
	(maybe_add_class_template_decl_list): Add declaration.
	* class.c (duplicate_tag_error): Initialize CLASSTYPE_DECL_LIST.
	(unreverse_member_declarations): Reverse CLASSTYPE_DECL_LIST.
	(maybe_add_class_template_decl_list): New function.
	(add_implicitly_declared_members): Use it.
	* decl.c (maybe_process_template_type_declaration): Likewise.
	(pushtag): Likewise.
	* friend.c (add_friend): Likewise.
	(make_friend_class): Likewise.
	* semantics.c (finish_member_declaration): Likewise.
	(begin_class_definition): Initialize CLASSTYPE_DECL_LIST.
	* pt.c (instantiate_class_template): Use CLASSTYPE_DECL_LIST
	to process members and friends in the order of declaration.

	Core issue 287, PR c++/7639
	* g++.dg/template/instantiate1.C: Adjust error location.
	* g++.dg/template/instantiate3.C: New test.
	* g++.old-deja/g++.pt/crash10.C: Adjust error location.
	* g++.old-deja/g++.pt/derived3.C: Adjust error location.
	* g++.old-deja/g++.pt/spec28.C: Reorder declaration.

From-SVN: r58654