spew.c (yylex): Give diagnostic.

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1998-09-24  Benjamin Kosnik  <bkoz@loony.cygnus.com>
	* spew.c (yylex): Give diagnostic.
	* hash.h (is_reserved_word): Add export.
	* gxx.gperf: Ditto.
	* lex.h (rid): Add RID_EXPORT.
	* lex.c (init_parse): Ditto.

From-SVN: r22578