perf(ngRepeat): avoid duplicate jqLite wrappers

Internally, `$animate` already wraps elements passed through with
`jqLite`, so we can avoid needless duplication here.

Author: dcherman

Diff for: src/ng/directive/ngRepeat.js

@@ -508,7 +508,7 @@ var ngRepeatDirective = ['$parse', '$animate', function($parse, $animate) {
 
               if (getBlockStart(block) != nextNode) {
                 // existing item which got moved
-                $animate.move(getBlockNodes(block.clone), null, jqLite(previousNode));
+                $animate.move(getBlockNodes(block.clone), null, previousNode);
               }
               previousNode = getBlockEnd(block);
               updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);
@@ -520,8 +520,7 @@ var ngRepeatDirective = ['$parse', '$animate', function($parse, $animate) {
                 var endNode = ngRepeatEndComment.cloneNode(false);
                 clone[clone.length++] = endNode;
 
-                // TODO(perf): support naked previousNode in `enter` to avoid creation of jqLite wrapper?
-                $animate.enter(clone, null, jqLite(previousNode));
+                $animate.enter(clone, null, previousNode);
                 previousNode = endNode;
                 // Note: We only need the first/last node of the cloned nodes.
                 // However, we need to keep the reference to the jqlite wrapper as it might be changed later