perf(*): don't trigger digests after enter/leave of structural directives

src/ng/directive/ngIf.js

@@ -115,8 +115,8 @@ var ngIfDirective = ['$animate', '$compile', function($animate, $compile) {
             }
             if (block) {
               previousElements = getBlockNodes(block.clone);
-              $animate.leave(previousElements).then(function() {
-                previousElements = null;
+              $animate.leave(previousElements).done(function(response) {
+                if (response !== false) previousElements = null;
               });
               block = null;
             }

src/ng/directive/ngInclude.js

@@ -214,18 +214,19 @@ var ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',
             currentScope = null;
           }
           if (currentElement) {
-            $animate.leave(currentElement).then(function() {
-              previousElement = null;
+            $animate.leave(currentElement).done(function(response) {
+              if (response !== false) previousElement = null;
             });
             previousElement = currentElement;
             currentElement = null;
           }
         };
 
         scope.$watch(srcExp, function ngIncludeWatchAction(src) {
-          var afterAnimation = function() {
-            if (isDefined(autoScrollExp) && (!autoScrollExp || scope.$eval(autoScrollExp))) {
-              $anchorScroll();
+          var afterAnimation = function(response) {
+            if (response !== false && isDefined(autoScrollExp) &&
+              (!autoScrollExp || scope.$eval(autoScrollExp))) {
+                $anchorScroll();
             }
           };
           var thisChangeId = ++changeCounter;
@@ -248,7 +249,7 @@ var ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',
               // directives to non existing elements.
               var clone = $transclude(newScope, function(clone) {
                 cleanupLastIncludeContent();
-                $animate.enter(clone, null, $element).then(afterAnimation);
+                $animate.enter(clone, null, $element).done(afterAnimation);
               });
 
               currentScope = newScope;

src/ng/directive/ngSwitch.js

@@ -153,21 +153,24 @@ var ngSwitchDirective = ['$animate', '$compile', function($animate, $compile) {
           selectedScopes = [];
 
       var spliceFactory = function(array, index) {
-          return function() { array.splice(index, 1); };
+          return function(response) {
+            if (response !== false) array.splice(index, 1);
+          };
       };
 
       scope.$watch(watchExpr, function ngSwitchWatchAction(value) {
         var i, ii;
-        for (i = 0, ii = previousLeaveAnimations.length; i < ii; ++i) {
-          $animate.cancel(previousLeaveAnimations[i]);
+
+        // Start with the last, in case the array is modified during the loop
+        while (previousLeaveAnimations.length) {
+          $animate.cancel(previousLeaveAnimations.pop());
         }
-        previousLeaveAnimations.length = 0;
 
         for (i = 0, ii = selectedScopes.length; i < ii; ++i) {
           var selected = getBlockNodes(selectedElements[i].clone);
           selectedScopes[i].$destroy();
-          var promise = previousLeaveAnimations[i] = $animate.leave(selected);
-          promise.then(spliceFactory(previousLeaveAnimations, i));
+          var runner = previousLeaveAnimations[i] = $animate.leave(selected);
+          runner.done(spliceFactory(previousLeaveAnimations, i));
         }
 
         selectedElements.length = 0;

src/ngRoute/directive/ngView.js

@@ -207,8 +207,8 @@ function ngViewFactory($route, $anchorScroll, $animate) {
           }
           if (currentElement) {
             previousLeaveAnimation = $animate.leave(currentElement);
-            previousLeaveAnimation.then(function() {
-              previousLeaveAnimation = null;
+            previousLeaveAnimation.done(function(response) {
+              if (response !== false) previousLeaveAnimation = null;
             });
             currentElement = null;
           }
@@ -229,8 +229,8 @@ function ngViewFactory($route, $anchorScroll, $animate) {
             // function is called before linking the content, which would apply child
             // directives to non existing elements.
             var clone = $transclude(newScope, function(clone) {
-              $animate.enter(clone, null, currentElement || $element).then(function onNgViewEnter() {
-                if (angular.isDefined(autoScrollExp)
+              $animate.enter(clone, null, currentElement || $element).done(function onNgViewEnter(response) {
+                if (response !== false && angular.isDefined(autoScrollExp)
                   && (!autoScrollExp || scope.$eval(autoScrollExp))) {
                   $anchorScroll();
                 }