[pattern_semi_list] was always followed with [opt_semi]; simplified. This saves two states.
[pattern_semi_list] was always followed with [opt_semi]; simplified.
This saves two states.

gerdstolpmann/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml