Add support for OCaml 4.14 (#119)

* Add support for OCaml 4.14 (patch from @pitag-ha for Sandmark in ocaml-bench/sandmark#251)

Co-authored-by: Sonja Heinze <sonjaleaheinze@gmail.com>

* Update magic number for OCaml 4.14

* tools/gencopy: Upgrade to OCaml 4.13

Signed-off-by: Kate <kit.ty.kate@disroot.org>

* Add changelog entry

Signed-off-by: Sonja Heinze <sonjaleaheinze@gmail.com>

Co-authored-by: Sonja Heinze <sonjaleaheinze@gmail.com>

CHANGES.md

@@ -1,3 +1,8 @@
+unreleased
+--------------------------
+
+- Add support for 4.14 (#119, @kit-ty-kate)
+
 v2.2.0 2021-06-21 Paris
 --------------------------
 

ocaml-migrate-parsetree.opam

@@ -14,7 +14,7 @@ build: ["dune" "build" "-p" name "-j" jobs]
 run-test: ["dune" "runtest" "-p" name "-j" jobs]
 depends: [
   "dune" {>= "2.3"}
-  "ocaml" {>= "4.02.3" & < "4.14"}
+  "ocaml" {>= "4.02.3" & < "4.15"}
   "cinaps" {with-test & >= "v0.13.0"}
 ]
 synopsis: "Convert OCaml parsetrees between different versions"