* helm-config.el: font-lock helm-aif.
* helm.el (helm-candidates-in-buffer): Take source as arg now.
(helm-compile-source--candidates-in-buffer): Pass arg source to helm-candidates-in-buffer.
* helm.el (helm-current-source): New internal var.
(helm-get-current-source): Don't declare source, use helm-current-source.
(helm-funcall-with-source,
helm-compute-matches): Bind helm-current-source.
(helm-internal): reset helm-current-source.