cp-tree.h (cp_declarator): Split "name" field into qualifying_scope and unqualified_name.

	* cp-tree.h (cp_declarator): Split "name" field into
	qualifying_scope and unqualified_name.
	* decl.c (get_scope_of_declarator): Adjust accordingly.
	(grokdeclarator): Likewise.
	* decl2.c (grokfield): Likewise, and adjust call to
	do_class_using_decl.
	* name-lookup.c (do_class_using_decl): Split "decl" into
	"scope" and "name".  Remove unnecessary code.
	* name-lookup.h (do_class_using_decl): Adjust declaration.
	* parser.c (make_id_declarator): Split "id" into qualifying_scope
	and unqualified_name.
	(cp_parser_using_declaration): Adjust call to do_class_using_decl.
	(cp_parser_direct_declarator): Adjust to handle the fact that
	cp_parser_declarator_id no longer returns a SCOPE_REF.
	(cp_parser_direct_declarator): Likewise.
	(cp_parser_declarator_id): Do not create a SCOPE_REF for qualified
	names.
	(cp_parser_member_declaration): Adjust call to make_id_declarator.
	(cp_parser_check_declarator_template_parameters): Do not expect a
	SCOPE_REF.

	* decl.c (duplicate_decls): Call ggc_free on declarations we will
	not be needing any longer.

From-SVN: r92746