Delay resolution of redirecting factory targets in order to avoid class

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, 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.
 
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "vm/bigint_operations.h"
@@ skipping 2801 matching lines @@
                               number_of_arguments);
   if (result.IsError()) {
     return Api::NewHandle(isolate, result.raw());
   }
   ASSERT(result.IsFunction());
   Function& constructor = Function::Handle(isolate);
   constructor ^= result.raw();
 
   Instance& new_object = Instance::Handle(isolate);
   if (constructor.IsRedirectingFactory()) {
-    Type& type = Type::Handle(constructor.RedirectionType());
+    ClassFinalizer::ResolveRedirectingFactory(cls, constructor);
+    const Type& type = Type::Handle(constructor.RedirectionType());
+    constructor = constructor.RedirectionTarget();
+    if (constructor.IsNull()) {
+      ASSERT(type.IsMalformed());
+      return Api::NewHandle(isolate, type.malformed_error());
+    }
     cls = type.type_class();
-    constructor = constructor.RedirectionTarget();
   }
   if (constructor.IsConstructor()) {
     // Create the new object.
     new_object = Instance::New(cls);
   }
 
   // Create the argument list.
   intptr_t arg_index = 0;
   int extra_args = (constructor.IsConstructor() ? 2 : 1);
   const Array& args =
@@ skipping 1235 matching lines @@
   }
   {
     NoGCScope no_gc;
     RawObject* raw_obj = obj.raw();
     isolate->heap()->SetPeer(raw_obj, peer);
   }
   return Api::Success();
 }
 
 }  // namespace dart