Exclude `boot/menhir/parser.{ml,mli}` from the list of source files used by `make build-all-asts` and related commands.
Exclude `boot/menhir/parser.{ml,mli}` from the list of source files
used by `make build-all-asts` and related commands.

Indeed, the idea is to check that the ASTs do not change when the parser is
modified -- the parser's source itself, if included, would always produce a
false positive.

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