Run dartfmt on all files under runtime.

runtime/lib/array_patch.dart

Index: runtime/lib/array_patch.dart
diff --git a/runtime/lib/array_patch.dart b/runtime/lib/array_patch.dart
index db4626a9ed3a3794311e1062020250dd0be78df6..b1e5398127e89dac7626a4171c507d640f128828 100644
--- a/runtime/lib/array_patch.dart
+++ b/runtime/lib/array_patch.dart
@@ -10,10 +10,13 @@ class _GrowableArrayMarker implements int {
 
 const _GROWABLE_ARRAY_MARKER = const _GrowableArrayMarker();
 
-@patch class List<E> {
-  @patch factory List([int length]) = List<E>._internal;
+@patch
+class List<E> {
+  @patch
+  factory List([int length]) = List<E>._internal;
 
-  @patch factory List.filled(int length, E fill, {bool growable: false}) {
+  @patch
+  factory List.filled(int length, E fill, {bool growable: false}) {
     // All error handling on the length parameter is done at the implementation
     // of new _List.
     var result = growable ? new _GrowableList<E>(length) : new _List<E>(length);
@@ -25,13 +28,17 @@ const _GROWABLE_ARRAY_MARKER = const _GrowableArrayMarker();
     return result;
   }
 
-  @patch factory List.from(Iterable elements, { bool growable: true }) {
+  @patch
+  factory List.from(Iterable elements, {bool growable: true}) {
     if (elements is EfficientLengthIterable) {
       int length = elements.length;
       var list = growable ? new _GrowableList<E>(length) : new _List<E>(length);
-      if (length > 0) {  // Avoid creating iterator unless necessary.
+      if (length > 0) {
+        // Avoid creating iterator unless necessary.
         int i = 0;
-        for (var element in elements) { list[i++] = element; }
+        for (var element in elements) {
+          list[i++] = element;
+        }
       }
       return list;
     }
@@ -47,7 +54,8 @@ const _GROWABLE_ARRAY_MARKER = const _GrowableArrayMarker();
     return makeListFixedLength(list);
   }
 
-  @patch factory List.unmodifiable(Iterable elements) {
+  @patch
+  factory List.unmodifiable(Iterable elements) {
     List result = new List<E>.from(elements, growable: false);
     return makeFixedListUnmodifiable(result);
   }