Lisp: Enable helm-slime-mode.

.emacs.d/lisp/init-lisp.el

@@ -48,6 +48,10 @@
     (slime-setup slime-extra)
     (add-hook 'slime-repl-mode-hook 'ambrevar/init-lispy)))
 
+(when (require helm-slime nil 'noerror)
+  (global-helm-slime-mode)
+  (add-to-list 'helm-source-names-using-follow "SLIME xrefs"))
+
 ;; Read CLHS locally.
 (or
  ;; Quicklisp package.