Move the dart2js snapshot into bin directory of sdk root.

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 455 matching lines @@
         name, directory,
         ['$directory/$name.status', '$directory/${name}_dart2js.status'],
         isTestFilePredicate: (filename) => filename.endsWith('_test.dart'),
         recursive: true);
   }
 
   Collection<Uri> get dart2JsBootstrapDependencies {
     if (!useSdk) return [];
 
     var snapshotPath = TestUtils.absolutePath(new Path(buildDir).join(
-        new Path('dart-sdk/lib/_internal/compiler/'
-                 'implementation/dart2js.dart.snapshot'))).toString();
+        new Path('dart-sdk/bin/snapshots/'
+                 'utils_wrapper.dart.snapshot'))).toString();
     return [new Uri.fromComponents(scheme: 'file', path: snapshotPath)];
   }
 
   /**
    * The default implementation assumes a file is a test if
    * it ends in "Test.dart".
    */
   bool isTestFile(String filename) {
     // Use the specified predicate, if provided.
     if (isTestFilePredicate != null) return isTestFilePredicate(filename);
@@ skipping 1445 matching lines @@
  * $pass tests are expected to pass
  * $failOk tests are expected to fail that we won't fix
  * $fail tests are expected to fail that we should fix
  * $crash tests are expected to crash that we should fix
  * $timeout tests are allowed to timeout
  * $compileErrorSkip tests are skipped on browsers due to compile-time error
 """;
     print(report);
    }
 }