pkg/compiler: fix imports

pkg/compiler/lib/src/cps_ir/effects.dart

 // Copyright (c) 2016, 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.
 library dart2js.cps_ir.effects;
 
 import 'dart:typed_data';
+
 import '../universe/side_effects.dart' show SideEffects;
 
 /// Bitmasks for tracking non-local side effects and dependencies.
 ///
 /// All effects must be attributed to an effect area.  The `other` area is a
 /// catch-all for any effect that does not belong to any of the specific areas;
 /// this includes external effects such as printing to the console.
 class Effects {
   // Effect areas.
   // These are bit positions, not bit masks. They are private because it is
@@ skipping 173 matching lines @@
   List<int> getDependencies(int dependsFlags) {
     Int32List copy = new Int32List.fromList(_effectNumbers);
     for (int i = 0; i < Effects.numberOfEffectAreas; ++i) {
       if (dependsFlags & Effects._dependsOnArea(i) == 0) {
         copy[i] = EffectNumberer.none;
       }
     }
     return copy;
   }
 }