Add --modules=node support

tool/input_sdk/private/types.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.
 
 /// This library defines the representation of runtime types.
 part of dart._runtime;
 
 /// The Symbol for storing type arguments on a specialized generic type.
 final _mixins = JS('', 'Symbol("mixins")');
 @JSExportName('implements')
@@ skipping 39 matching lines @@
   }
 ''');
 @JSExportName('dynamic')
 final dynamicR = JS('', 'new $Dynamic()');
 
 final Void = JS('', '''
   class Void extends $TypeRep {
     toString() { return "void"; }
   }
 ''');
-
 @JSExportName('void')
 final voidR = JS('', 'new $Void()');
 
 final Bottom = JS('', '''
   class Bottom extends $TypeRep {
     toString() { return "bottom"; }
   }
 ''');
 final bottom = JS('', 'new $Bottom()');
 
@@ skipping 466 matching lines @@
     return true;
   }
 
   let typeArgs = $getGenericArgs($type);
   if (!typeArgs) return true;
   for (let t of typeArgs) {
     if (t != $Object && t != $dynamicR) return false;
   }
   return true;
 })()''');