Add --modules=node support

lib/runtime/dart/isolate.js

 dart_library.library('dart/isolate', null, /* Imports */[
   'dart/_runtime',
   'dart/core',
   'dart/async'
 ], /* Lazy imports */[
   'dart/_isolate_helper'
-], function(exports, dart, core, async, _isolate_helper) {
+], function(exports, dart, core, $async, _isolate_helper) {
   'use strict';
   let dartx = dart.dartx;
   class Capability extends core.Object {
     static new() {
       return new _isolate_helper.CapabilityImpl();
     }
   }
   dart.setSignature(Capability, {
     constructors: () => ({new: [Capability, []]})
   });
@@ skipping 20 matching lines @@
     }
     static get current() {
       return Isolate._currentIsolateCache;
     }
     static spawn(entryPoint, message, opts) {
       let paused = opts && 'paused' in opts ? opts.paused : false;
       try {
         return _isolate_helper.IsolateNatives.spawnFunction(entryPoint, message, paused).then(dart.fn(msg => new Isolate(dart.as(msg[dartx.get](1), SendPort), {pauseCapability: dart.as(msg[dartx.get](2), Capability), terminateCapability: dart.as(msg[dartx.get](3), Capability)}), Isolate, [core.List]));
       } catch (e) {
         let st = dart.stackTrace(e);
-        return async.Future$(Isolate).error(e, st);
+        return $async.Future$(Isolate).error(e, st);
       }
 
     }
     static spawnUri(uri, args, message, opts) {
       let paused = opts && 'paused' in opts ? opts.paused : false;
       let packageRoot = opts && 'packageRoot' in opts ? opts.packageRoot : null;
       if (packageRoot != null) dart.throw(new core.UnimplementedError("packageRoot"));
       try {
         if (dart.is(args, core.List)) {
           for (let i = 0; i < dart.notNull(args[dartx.length]); i++) {
             if (!(typeof args[dartx.get](i) == 'string')) {
               dart.throw(new core.ArgumentError(`Args must be a list of Strings ${args}`));
             }
           }
         } else if (args != null) {
           dart.throw(new core.ArgumentError(`Args must be a list of Strings ${args}`));
         }
         return _isolate_helper.IsolateNatives.spawnUri(uri, args, message, paused).then(dart.fn(msg => new Isolate(dart.as(msg[dartx.get](1), SendPort), {pauseCapability: dart.as(msg[dartx.get](2), Capability), terminateCapability: dart.as(msg[dartx.get](3), Capability)}), Isolate, [core.List]));
       } catch (e) {
         let st = dart.stackTrace(e);
-        return async.Future$(Isolate).error(e, st);
+        return $async.Future$(Isolate).error(e, st);
       }
 
     }
     pause(resumeCapability) {
       if (resumeCapability === void 0) resumeCapability = null;
       if (resumeCapability == null) resumeCapability = Capability.new();
       this[_pause](resumeCapability);
       return resumeCapability;
     }
     [_pause](resumeCapability) {
@@ skipping 55 matching lines @@
     get errors() {
       let controller = null;
       let port = null;
       function handleError(message) {
         let errorDescription = dart.as(dart.dindex(message, 0), core.String);
         let stackDescription = dart.as(dart.dindex(message, 1), core.String);
         let error = new RemoteError(errorDescription, stackDescription);
         controller.addError(error, error.stackTrace);
       }
       dart.fn(handleError, dart.void, [dart.dynamic]);
-      controller = async.StreamController.broadcast({sync: true, onListen: dart.fn((() => {
+      controller = $async.StreamController.broadcast({sync: true, onListen: dart.fn((() => {
           port = RawReceivePort.new(handleError);
           this.addErrorListener(port.sendPort);
         }).bind(this), dart.void, []), onCancel: dart.fn((() => {
           this.removeErrorListener(port.sendPort);
           port.close();
           port = null;
         }).bind(this), dart.void, [])});
       return controller.stream;
     }
   }
   dart.setSignature(Isolate, {
     constructors: () => ({Isolate: [Isolate, [SendPort], {pauseCapability: Capability, terminateCapability: Capability}]}),
     methods: () => ({
       pause: [Capability, [], [Capability]],
       [_pause]: [dart.void, [Capability]],
       resume: [dart.void, [Capability]],
       addOnExitListener: [dart.void, [SendPort]],
       removeOnExitListener: [dart.void, [SendPort]],
       setErrorsFatal: [dart.void, [core.bool]],
       kill: [dart.void, [], [core.int]],
       ping: [dart.void, [SendPort], [core.int]],
       addErrorListener: [dart.void, [SendPort]],
       removeErrorListener: [dart.void, [SendPort]]
     }),
     statics: () => ({
-      spawn: [async.Future$(Isolate), [dart.functionType(dart.void, [dart.dynamic]), dart.dynamic], {paused: core.bool}],
-      spawnUri: [async.Future$(Isolate), [core.Uri, core.List$(core.String), dart.dynamic], {paused: core.bool, packageRoot: core.Uri}]
+      spawn: [$async.Future$(Isolate), [dart.functionType(dart.void, [dart.dynamic]), dart.dynamic], {paused: core.bool}],
+      spawnUri: [$async.Future$(Isolate), [core.Uri, core.List$(core.String), dart.dynamic], {paused: core.bool, packageRoot: core.Uri}]
     }),
     names: ['spawn', 'spawnUri']
   });
   Isolate.IMMEDIATE = 0;
   Isolate.BEFORE_NEXT_EVENT = 1;
   Isolate.AS_EVENT = 2;
   dart.defineLazyProperties(Isolate, {
     get _currentIsolateCache() {
       return _isolate_helper.IsolateNatives.currentIsolate;
     }
   });
   class SendPort extends core.Object {}
   SendPort[dart.implements] = () => [Capability];
   class ReceivePort extends core.Object {
     static new() {
       return new _isolate_helper.ReceivePortImpl();
     }
     static fromRawReceivePort(rawPort) {
       return new _isolate_helper.ReceivePortImpl.fromRawReceivePort(rawPort);
     }
   }
-  ReceivePort[dart.implements] = () => [async.Stream];
+  ReceivePort[dart.implements] = () => [$async.Stream];
   dart.setSignature(ReceivePort, {
     constructors: () => ({
       new: [ReceivePort, []],
       fromRawReceivePort: [ReceivePort, [RawReceivePort]]
     })
   });
   class RawReceivePort extends core.Object {
     static new(handler) {
       if (handler === void 0) handler = null;
       return new _isolate_helper.RawReceivePortImpl(handler);
@@ skipping 45 matching lines @@
   });
   // Exports:
   exports.Capability = Capability;
   exports.IsolateSpawnException = IsolateSpawnException;
   exports.Isolate = Isolate;
   exports.SendPort = SendPort;
   exports.ReceivePort = ReceivePort;
   exports.RawReceivePort = RawReceivePort;
   exports.RemoteError = RemoteError;
 });