* c-tree.h (start_enum): Update.
	(build_enumerator): Likewise.
	* c-decl.c (enum_next_value): Removed.
	(enum_overflow): Likewise.
	(start_enum): Add c_enum_contents argument.  Don't use globals.
	(build_enumerator): Likewise.
	* c-tree.h (struct c_enum_contents): New struct.

From-SVN: r125322