emacs: check if set-temporary-overlay-map is supported
emacs: check if set-temporary-overlay-map is supported

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