Build AST for nses in project in topological order

when warming the AST cache

- fixes error after global rename symbol when def(n) being renamed is
  referred
- might give remedy for #126

src/refactor_nrepl/analyzer.clj

@@ -9,8 +9,8 @@
             [clojure.tools.namespace.parse :refer [read-ns-decl]]
             [clojure.walk :as walk]
             [refactor-nrepl
-             [config :as config]
-             [core :as core]]
+             [config :as config]]
+            [refactor-nrepl.ns.tracker :as tracker]
             [clojure.string :as str])
   (:import java.io.PushbackReader
            java.util.regex.Pattern))
@@ -121,7 +121,7 @@
                              "OK"))))))
 
 (defn warm-ast-cache []
-  (doseq [f (core/find-in-project core/clj-file?)]
+  (doseq [f (tracker/project-files-in-topo-order)]
     (try
       (ns-ast (slurp f))
       (catch Throwable th))) ;noop, ast-status will be reported separately

src/refactor_nrepl/ns/tracker.clj

@@ -18,3 +18,11 @@
     (for [[file ns] (:clojure.tools.namespace.file/filemap tracker)
           :when ((set deps) ns)]
       file)))
+
+(defn project-files-in-topo-order []
+  (let [tracker (file/add-files (tracker/tracker) (core/find-in-project core/clj-file?))
+        nses (dep/topo-sort (:clojure.tools.namespace.track/deps tracker))
+        filemap (:clojure.tools.namespace.file/filemap tracker)
+        ns2file (zipmap (vals filemap) (keys filemap))]
+    (->> (map ns2file nses)
+         (remove nil?))))