Fix build break.

tools/testing/dart/runtime_configuration.dart

 // Copyright (c) 2014, 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 runtime_configuration;
 
 import 'compiler_configuration.dart' show CommandArtifact;
 
 // TODO(ahe): Remove this import, we can precompute all the values required
 // from TestSuite once the refactoring is complete.
@@ skipping 184 matching lines @@
 /// program named Dump Render Tree, hence the name.
 class DrtRuntimeConfiguration extends DartVmRuntimeConfiguration {
   int computeTimeoutMultiplier(
       {String mode, bool isChecked: false, bool isReload: false, String arch}) {
     return 4 // Allow additional time for browser testing to run.
         // TODO(ahe): We might need to distinquish between DRT for running
         // JavaScript and Dart code.  I'm not convinced the inherited timeout
         // multiplier is relevant for JavaScript.
         *
         super.computeTimeoutMultiplier(
-            mode: mode, isChecked: isChecked, isRelease: isReload);
+            mode: mode, isChecked: isChecked, isReload: isReload);
   }
 }
 
 /// The standalone Dart VM binary, "dart" or "dart.exe".
 class StandaloneDartRuntimeConfiguration extends DartVmRuntimeConfiguration {
   List<Command> computeRuntimeCommands(
       TestSuite suite,
       CommandBuilder commandBuilder,
       CommandArtifact artifact,
       List<String> arguments,
@@ skipping 105 matching lines @@
 class DummyRuntimeConfiguration extends DartVmRuntimeConfiguration {
   List<Command> computeRuntimeCommands(
       TestSuite suite,
       CommandBuilder commandBuilder,
       CommandArtifact artifact,
       List<String> arguments,
       Map<String, String> environmentOverrides) {
     throw "Unimplemented runtime '$runtimeType'";
   }
 }