Stream isolates.

sdk/lib/_internal/compiler/implementation/lib/isolate_patch.dart

Index: sdk/lib/_internal/compiler/implementation/lib/isolate_patch.dart
diff --git a/sdk/lib/_internal/compiler/implementation/lib/isolate_patch.dart b/sdk/lib/_internal/compiler/implementation/lib/isolate_patch.dart
index 9c7b19d2173ff9fa4f679eda9747b65d3369c595..752a6723b7510c8f90374fbc8d8e0138925dbb9f 100644
--- a/sdk/lib/_internal/compiler/implementation/lib/isolate_patch.dart
+++ b/sdk/lib/_internal/compiler/implementation/lib/isolate_patch.dart
@@ -96,24 +96,27 @@ void _fillStatics(context) {
 }
 
 ReceivePort _lazyPort;
-patch ReceivePort get port {
-  if (_lazyPort == null) {
-    _lazyPort = new ReceivePort();
+
+patch class _Isolate {
+  patch static ReceivePort get port {
+    if (_lazyPort == null) {
+      _lazyPort = new ReceivePort();
+    }
+    return _lazyPort;
   }
-  return _lazyPort;
-}
 
-patch SendPort spawnFunction(void topLevelFunction()) {
-  final name = _IsolateNatives._getJSFunctionName(topLevelFunction);
-  if (name == null) {
-    throw new UnsupportedError(
-        "only top-level functions can be spawned.");
+  patch static SendPort spawnFunction(void topLevelFunction()) {
+    final name = _IsolateNatives._getJSFunctionName(topLevelFunction);
+    if (name == null) {
+      throw new UnsupportedError(
+          "only top-level functions can be spawned.");
+    }
+    return _IsolateNatives._spawn(name, null, false);
   }
-  return _IsolateNatives._spawn(name, null, false);
-}
 
-patch SendPort spawnUri(String uri) {
-  return _IsolateNatives._spawn(null, uri, false);
+  patch static SendPort spawnUri(String uri) {
+    return _IsolateNatives._spawn(null, uri, false);
+  }
 }
 
 /** State associated with the current manager. See [globalState]. */