Autocomplete #js forms

[mauricioszabo]

Currently, suitable can't auto-complete local vars like:

(let [d js/document]
  (.. d (queryS....)))

Because it only sends (suitable.js-introspection/property-names-and-types d "queryS") to the REPL.

It also can't understand the following form:

(.. #js [1 2 3] -leng)

It sends something like (suitable.js-introspection/property-names-and-types clojure.lang.TaggedLiteral@291df69f "leng")

[vemv]

For the record, locals were later added in clojure-emacs/cider-nrepl#767