Allow ordering for Array inheritors

src/ng/filter/orderBy.js

@@ -115,7 +115,7 @@
 orderByFilter.$inject = ['$parse'];
 function orderByFilter($parse){
   return function(array, sortPredicate, reverseOrder) {
-    if (!isArray(array)) return array;
+    if (!isArrayLike(array)) return array;
     if (!sortPredicate) return array;
     sortPredicate = isArray(sortPredicate) ? sortPredicate: [sortPredicate];
     sortPredicate = map(sortPredicate, function(predicate){

test/ng/filter/orderBySpec.js

@@ -17,6 +17,19 @@ describe('Filter: orderBy', function() {
     expect(orderBy([{a:15}, {a:2}], 'a', "reverse")).toEqualData([{a:15}, {a:2}]);
   });
 
+  it('should sort inherited from array', function(){
+    function BaseCollection(){}
+    BaseCollection.prototype = Array.prototype;
+    var child = new BaseCollection();
+    child.push({a:2});
+    child.push({a:15});
+
+    expect(Array.isArray(child)).toBe(false);
+    expect(child instanceof Array).toBe(true);
+
+    expect(orderBy(child, 'a', true)).toEqualData([{a:15}, {a:2}]);
+  });
+
   it('should sort array by predicate', function() {
     expect(orderBy([{a:15, b:1}, {a:2, b:1}], ['a', 'b'])).toEqualData([{a:2, b:1}, {a:15, b:1}]);
     expect(orderBy([{a:15, b:1}, {a:2, b:1}], ['b', 'a'])).toEqualData([{a:2, b:1}, {a:15, b:1}]);