Fix handling of EOF
Fix handling of EOF

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