* cp-tree.h (build_enumerator): Change prototype.
	* decl.c (enum_next_value): Remove.
	(enum_overflow): Likewise.
	(init_decl_processing): Don't register enum_next_value as a root.
	(start_enum): Clear TYPE_VALUES for a redefined enum.
	(finish_enum): Reset the type of enumeration constants.
	(build_enumerator): Fix indentation.  Don't copy CONST_DECLs when
	we don't need to.  Maintain the TYPE_VALUES list and look there
	for the previously defined enumeration constant.  Let enumeration
	constants have the type of their values until the enumeration type
	is complete.
	* parse.y (enumlist_opt, enumlist, enumerator): Don't return a value.
	(structsp): Adjust.
	* parse.c: Regenerated.
	* pt.c (tsubst_enum): Adjust according to build_enumerator changes.

From-SVN: r30544