* 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.