eliminate circular refs when using global dump() function

Author: hegemonic

jsdoc.js

@@ -112,8 +112,10 @@ function print() {
     @param {Object} ... Object/s to dump out to console.
  */
 function dump() {
-    for (var i = 0, leni = arguments.length; i < leni; i++) {
-        print( require('jsdoc/util/dumper').dump(arguments[i]) );
+    var doop = require('jsdoc/util/doop').doop;
+    var _dump = require('jsdoc/util/dumper').dump;
+    for (var i = 0, l = arguments.length; i < l; i++) {
+        print( _dump(doop(arguments[i])) );
     }
 }