PR c++/48051
	* mangle.c (write_expression): Mangle BASELINK scope if
	BASELINK_QUALIFIED_P.
	* search.c (adjust_result_of_qualified_name_lookup): Set
	BASELINK_QUALIFIED_P.
	* tree.c (cp_tree_equal) [BASELINK]: Compare BASELINK_QUALIFIED_P.
	* parser.c (cp_parser_postfix_dot_deref_expression): Don't call
	adjust_result_of_qualified_name_lookup for non-qualified names.

From-SVN: r183133