Add support for OCaml 4.13 #3
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This PR comes one top of #2 as ppxlib.0.23.0 will also come with the OCaml 4.13 support.
There was one extra change that was needed for OCaml 4.13. However currently this makes it break with OCaml 4.12 and below as the type of
Type_variantchanged.I tried to use
[%meta if Sys.ocaml_version >= "4.13.0" then [%p? Type_variant (ctors, _)] else [%p? Type_variant ctors]]instead, however this broke the compilation:Feel free to modify this PR
cc @pitag-ha