Mark Dartium and content shell as isDartVM.

lib/src/backend/platform_selector/evaluator.dart

 // Copyright (c) 2015, 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 test.backend.platform_selector.evaluator;
 
 import '../operating_system.dart';
 import '../test_platform.dart';
 import 'ast.dart';
 import 'visitor.dart';
 
 /// A visitor for evaluating platform selectors against a specific
 /// [TestPlatform] and [OperatingSystem].
 class Evaluator implements Visitor<bool> {
   /// The platform to test against.
   final TestPlatform _platform;
 
   /// The operating system to test against.
   final OperatingSystem _os;
 
   Evaluator(this._platform, {OperatingSystem os})
       : _os = os == null ? OperatingSystem.none : os;
 
   bool visitVariable(VariableNode node) {
     if (node.name == _platform.identifier) return true;
     if (node.name == _os.name) return true;
 
     switch (node.name) {
-      case "dart-vm": return _platform.isDartVm;
+      case "dart-vm": return _platform.isDartVM;
       case "browser": return _platform.isBrowser;
       case "js": return _platform.isJS;
       case "blink": return _platform.isBlink;
       case "posix": return _os.isPosix;
       default: return false;
     }
   }
 
   bool visitNot(NotNode node) => !node.child.accept(this);
 
   bool visitOr(OrNode node) =>
       node.left.accept(this) || node.right.accept(this);
 
   bool visitAnd(AndNode node) =>
       node.left.accept(this) && node.right.accept(this);
 
   bool visitConditional(ConditionalNode node) => node.condition.accept(this)
       ? node.whenTrue.accept(this)
       : node.whenFalse.accept(this);
 }