Revert "Fix observatory tests broken by running dartfmt."

runtime/lib/core_patch.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import "dart:async";
 import "dart:collection" show LinkedList, LinkedListEntry;
 import 'dart:convert' show ASCII, JSON;
 import "dart:isolate";
 import "dart:math";
 import "dart:typed_data";
@@ skipping 18 matching lines @@
   final _SyncGeneratorCallback _moveNextFn;
 
   const _SyncIterable(this._moveNextFn);
 
   get iterator {
     return new _SyncIterator(_moveNextFn._clone());
   }
 }
 
 class _SyncIterator implements Iterator {
-  bool isYieldEach; // Set by generated code for the yield* statement.
+  bool isYieldEach;  // Set by generated code for the yield* statement.
   Iterator yieldEachIterator;
-  var _current; // Set by generated code for the yield and yield* statement.
+  var _current;  // Set by generated code for the yield and yield* statement.
   _SyncGeneratorCallback _moveNextFn;
 
-  get current =>
-      yieldEachIterator != null ? yieldEachIterator.current : _current;
+  get current => yieldEachIterator != null
+      ? yieldEachIterator.current
+      : _current;
 
   _SyncIterator(this._moveNextFn);
 
   bool moveNext() {
     if (_moveNextFn == null) {
       return false;
     }
-    while (true) {
+    while(true) {
       if (yieldEachIterator != null) {
         if (yieldEachIterator.moveNext()) {
           return true;
         }
         yieldEachIterator = null;
       }
       isYieldEach = false;
       // _moveNextFn() will update the values of isYieldEach and _current.
       if (!_moveNextFn(this)) {
         _moveNextFn = null;
         _current = null;
         return false;
       }
       if (isYieldEach) {
         // Spec mandates: it is a dynamic error if the class of [the object
         // returned by yield*] does not implement Iterable.
         yieldEachIterator = (_current as Iterable).iterator;
         _current = null;
         continue;
       }
       return true;
     }
   }
 }
 
-@patch
-class StackTrace {
-  @patch
-  static StackTrace get current native "StackTrace_current";
+@patch class StackTrace {
+  @patch static StackTrace get current native "StackTrace_current";
 }