Fix compiler==none case in browser testing (Dartium case)

tools/testing/dart/test_suite.dart

 // Copyright (c) 2012, 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.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 1107 matching lines @@
 
       // Create the HTML file for the test.
       var htmlTest = new File(htmlPath).openSync(mode: FileMode.WRITE);
 
       var scriptPath = dartWrapperFilename;
       if (configuration.compiler != Compiler.none) {
         scriptPath = compiledDartWrapperFilename;
       }
       scriptPath = _createUrlPathFromFile(new Path(scriptPath));
 
-      if (configuration.compiler == Compiler.dart2js) {
+      if (configuration.compiler != Compiler.dartdevc) {
         content = getHtmlContents(fileName, scriptType, scriptPath);
       } else {
         var jsDir = new Path(compilationTempDir)
             .relativeTo(TestUtils.dartDir)
             .toString();
         content = dartdevcHtml(nameNoExt, jsDir);
       }
 
       htmlTest.writeStringSync(content);
       htmlTest.closeSync();
     }
 
     switch (configuration.compiler) {
       case Compiler.dart2js:
         commands.add(_dart2jsCompileCommand(dartWrapperFilename,
             compiledDartWrapperFilename, tempDir, optionsFromFile));
         break;
 
       case Compiler.dartdevc:
         commands.add(_dartdevcCompileCommand(dartWrapperFilename,
             '$compilationTempDir/$nameNoExt.js', optionsFromFile));
         break;
 
+      case Compiler.none:
+        break;
+
       default:
         assert(false);
     }
 
     // Some tests require compiling multiple input scripts.
     var otherScripts = optionsFromFile['otherScripts'] as List<String>;
     for (var name in otherScripts) {
       var namePath = new Path(name);
       var fromPath = filePath.directoryPath.join(namePath);
 
@@ skipping 671 matching lines @@
 
   bool isTestFile(String filename) {
     // NOTE: We exclude tests and patch files for now.
     return filename.endsWith(".dart") &&
         !filename.endsWith("_test.dart") &&
         !filename.contains("_internal/js_runtime/lib");
   }
 
   bool get listRecursively => true;
 }