Akim Demaille 4bddd33439 %nterm: do not accept numbers nor string alias ...

Reported by Rici Lake.
http://lists.gnu.org/archive/html/bug-bison/2018-10/msg00000.html

* src/parse-gram.y (symbol_def): Refuse string aliases and numbers
for non-terminals.
(prologue_declaration): Recover from errors ended with ';'.
* tests/input.at (Invalid %nterm uses): New.

2018-11-27 08:25:38 +01:00

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