Update the Angular/DI tests to latest from github.

third_party/pkg/angular/lib/filter/limit_to.dart

Index: third_party/pkg/angular/lib/filter/limit_to.dart
diff --git a/third_party/pkg/angular/lib/filter/limit_to.dart b/third_party/pkg/angular/lib/filter/limit_to.dart
index e2889900e28e8d285b4c45de4407bca5be289fcb..1237a8a5b3814e0913113c35f77305367780bc41 100644
--- a/third_party/pkg/angular/lib/filter/limit_to.dart
+++ b/third_party/pkg/angular/lib/filter/limit_to.dart
@@ -41,28 +41,18 @@ class LimitToFilter {
   LimitToFilter(this._injector);
 
   dynamic call(dynamic items, [int limit]) {
-    if (items == null) {
-      return null;
-    }
-    if (limit == null) {
-      return const[];
-    }
-    if (items is! List && items is! String) {
-      return items;
-    }
+    if (items == null) return null;
+    if (limit == null) return const[];
+    if (items is! List && items is! String) return items;
     int i = 0, j = items.length;
     if (limit > -1) {
       j = (limit > j) ? j : limit;
     } else {
       i = j + limit;
-      if (i < 0) {
-        i = 0;
-      }
-    }
-    if (items is String) {
-      return (items as String).substring(i, j);
-    } else {
-      return (items as List).getRange(i, j).toList(growable: false);
+      if (i < 0) i = 0;
     }
+    return items is String ?
+        (items as String).substring(i, j) :
+        (items as List).getRange(i, j).toList(growable: false);
   }
 }