Akim Demaille d115aad911 yacc: fix YYBACKUP. ...

Reported by David Kastrup:
https://lists.gnu.org/archive/html/bug-bison/2011-10/msg00002.html.

	* data/yacc.c (YYBACKUP): Accept rhs size.
	Restore the proper state value.
	* TODO (YYBACKUP): Make it...
	* tests/actions.at: a new test case.
	* NEWS, THANKS: Update.

2012-01-26 21:18:24 +01:00

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