Handle load errors in deferred code

runtime/vm/object_store.h

 // Copyright (c) 2012, 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.
 
 #ifndef VM_OBJECT_STORE_H_
 #define VM_OBJECT_STORE_H_
 
 #include "vm/object.h"
 
 namespace dart {
@@ skipping 336 matching lines @@
   RawGrowableObjectArray* pending_classes() const { return pending_classes_; }
   void set_pending_classes(const GrowableObjectArray& value) {
     ASSERT(!value.IsNull());
     pending_classes_ = value.raw();
   }
 
   RawGrowableObjectArray* pending_functions() const {
     return pending_functions_;
   }
 
+  RawGrowableObjectArray* pending_deferred_loads() const {
+    return pending_deferred_loads_;
+  }
+  void clear_pending_deferred_loads() {
+    pending_deferred_loads_ = GrowableObjectArray::New();
+  }
+
   RawGrowableObjectArray* resume_capabilities() const {
     return resume_capabilities_;
   }
 
   RawError* sticky_error() const { return sticky_error_; }
   void set_sticky_error(const Error& value) {
     ASSERT(!value.IsNull());
     sticky_error_ = value.raw();
   }
   void clear_sticky_error() { sticky_error_ = Error::null(); }
@@ skipping 130 matching lines @@
   RawLibrary* isolate_library_;
   RawLibrary* math_library_;
   RawLibrary* mirrors_library_;
   RawLibrary* native_wrappers_library_;
   RawLibrary* root_library_;
   RawLibrary* typed_data_library_;
   RawLibrary* profiler_library_;
   RawGrowableObjectArray* libraries_;
   RawGrowableObjectArray* pending_classes_;
   RawGrowableObjectArray* pending_functions_;
+  RawGrowableObjectArray* pending_deferred_loads_;
   RawGrowableObjectArray* resume_capabilities_;
   RawError* sticky_error_;
   RawString* unhandled_exception_handler_;
   RawContext* empty_context_;
   RawInstance* stack_overflow_;
   RawInstance* out_of_memory_;
   RawUnhandledException* preallocated_unhandled_exception_;
   RawStacktrace* preallocated_stack_trace_;
   RawFunction* lookup_port_handler_;
   RawFunction* handle_message_function_;
   RawUserTag* default_tag_;
   RawObject** to() {
     return reinterpret_cast<RawObject**>(&handle_message_function_);
   }
 
   friend class SnapshotReader;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectStore);
 };
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_STORE_H_