gg-lr-head accessing a non-gg-lr #4
Description
This grammar produces the error (error gg-lr-head accessing a non-gg-lr):
(gg-grammar
(x y |)
(y x))
{{ message }}
This grammar produces the error (error gg-lr-head accessing a non-gg-lr):
(gg-grammar
(x y |)
(y x))