cljr-slash behaves badly with in-ns

[phillord]

Expected behavior

When using "/" in a file using in-ns, clr-refactor should either give up, or should add requires to the namespace file.

Actual behavior

We get a illegal declaration like

(in-ns 'bob (:require [fred])

Steps to reproduce the problem

Use the slash command in a namespace with in-ns.

The problem comes about because cljr-slash uses clojure-find-ns. This actually finds either (ns) or (in-ns) forms. The refactoring is suitable for only the former.

Environment & Version information

Emacs 25.2 (trunk)
CIDER/CLojure(trunk)

clj-refactor.el version information

2.2.0

CIDER version information

Trunk``

Leiningen or Boot version

Emacs version

Operating system

Ubuntu