Re-apply: Inside a generative constructor, "this" is created at the very end. So we have to use the…

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

Index: sdk/lib/_internal/compiler/implementation/closure.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/closure.dart	(revision 19293)
+++ sdk/lib/_internal/compiler/implementation/closure.dart	(working copy)
@@ -447,11 +447,10 @@
     }
     if (outermostElement.isMember() &&
         compiler.world.needsRti(outermostElement.getEnclosingClass())) {
-      if (outermostElement.isInstanceMember()
-          || outermostElement.isGenerativeConstructor()) {
-        if (hasTypeVariable(type)) useLocal(closureData.thisElement);
-      } else if (outermostElement.isFactoryConstructor()) {
+      if (outermostElement.isConstructor()) {
         analyzeTypeVariables(type);
+      } else if (outermostElement.isInstanceMember()) {
+        if (hasTypeVariable(type)) useLocal(closureData.thisElement);
       }
     }