Replace 'the the' with 'the'

pkg/dev_compiler/tool/input_sdk/lib/js/dart2js/js_dart2js.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.
 
 /**
  * Support for interoperating with JavaScript.
  *
  * This library provides access to JavaScript objects from Dart, allowing
  * Dart code to get and set properties, and call methods of JavaScript objects
  * and invoke JavaScript functions. The library takes care of converting
@@ skipping 422 matching lines @@
     callMethod('splice', args);
   }
 
   void sort([int compare(E a, E b)]) {
     // Note: arr.sort(null) is a type error in FF
     callMethod('sort', compare == null ? [] : [compare]);
   }
 }
 
 // Cross frame objects should not be considered browser types.
-// We include the the instanceof Object test to filter out cross frame objects
+// We include the instanceof Object test to filter out cross frame objects
 // on FireFox. Surprisingly on FireFox the instanceof Window test succeeds for
 // cross frame windows while the instanceof Object test fails.
 bool _isBrowserType(o) => JS(
     'bool',
     '# instanceof Object && ('
     '# instanceof Blob || '
     '# instanceof Event || '
     '(window.KeyRange && # instanceof KeyRange) || '
     '(window.IDBKeyRange && # instanceof IDBKeyRange) || '
     '# instanceof ImageData || '
@@ skipping 126 matching lines @@
         '  for (let arg of arguments) {'
         '    args.push(arg);'
         '  }'
         '  return #(...args);'
         '}',
         f);
     _interopCaptureThisExpando[f] = ret;
   }
   return ret;
 }