Compute an incremental patch to JavaScript code.

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

Index: dart/sdk/lib/_internal/compiler/implementation/enqueue.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/enqueue.dart b/dart/sdk/lib/_internal/compiler/implementation/enqueue.dart
index cbfedd4e65844355ef385dfbc51ce1a56577be90..3de2cedd5b2e03404dbbe2fc53acba7335ef9a0d 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/enqueue.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/enqueue.dart
@@ -857,9 +857,6 @@ class CodegenEnqueuer extends Enqueuer {
   }
 
   bool internalAddToWorkList(Element element) {
-    if (compiler.hasIncrementalSupport) {
-      newlyEnqueuedElements.add(element);
-    }
     // Don't generate code for foreign elements.
     if (element.isForeign(compiler.backend)) return false;
 
@@ -872,6 +869,10 @@ class CodegenEnqueuer extends Enqueuer {
       }
     }
 
+    if (compiler.hasIncrementalSupport && !isProcessed(element)) {
+      newlyEnqueuedElements.add(element);
+    }
+
     if (queueIsClosed) {
       throw new SpannableAssertionFailure(element,
           "Codegen work list is closed. Trying to add $element");