typecore patch: fix #540
typecore patch: fix #540

dra27/merlin,the-lambda-church/merlin,rgrinberg/merlin,ocaml/merlin,ocaml/merlin,fxfactorial/merlin,ocaml/merlin,dra27/merlin,fxfactorial/merlin,rgrinberg/merlin,dra27/merlin,rgrinberg/merlin,dra27/merlin,ocaml/merlin,fxfactorial/merlin,the-lambda-church/merlin,fxfactorial/merlin,the-lambda-church/merlin,rgrinberg/merlin