instrument.diff

diff --git a/src/vendor/angular/angular.js b/src/vendor/angular/angular.js
index d2115fe..e878eae 100644
--- a/src/vendor/angular/angular.js
+++ b/src/vendor/angular/angular.js
@@ -8779,6 +8779,9 @@ function $RootScopeProvider(){
             logIdx, logMsg;

         beginPhase('$digest');
+        var ccount = 0;
+        console.time("$digest");
+

         do { // "while dirty" loop
           dirty = false;
@@ -8796,6 +8799,7 @@ function $RootScopeProvider(){
             if ((watchers = current.$$watchers)) {
               // process our watches
               length = watchers.length;
+              ccount += length;
               while (length--) {
                 try {
                   watch = watchers[length];
@@ -8842,6 +8846,8 @@ function $RootScopeProvider(){
           }
         } while (dirty || asyncQueue.length);

+        console.timeEnd("$digest");
+        console.log("%d watchers", ccount);
         clearPhase();
       },