Handle load errors in deferred code

runtime/vm/debugger_api_impl.cc

 // 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.
 
 #include "include/dart_debugger_api.h"
 
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
@@ skipping 898 matching lines @@
     ASSERT(Smi::IsValid(imported.index()));
     import_list.Add(Smi::Handle(Smi::New(imported.index())));
   }
   LibraryPrefixIterator it(lib);
   LibraryPrefix& prefix = LibraryPrefix::Handle(isolate);
   while (it.HasNext()) {
     prefix = it.GetNext();
     prefix_name = prefix.name();
     ASSERT(!prefix_name.IsNull());
     prefix_name = String::Concat(prefix_name, Symbols::Dot());
-    for (int i = 0; i < prefix.num_imports(); i++) {
+    for (int32_t i = 0; i < prefix.num_imports(); i++) {
       imported = prefix.GetLibrary(i);
       import_list.Add(prefix_name);
       import_list.Add(Smi::Handle(Smi::New(imported.index())));
     }
   }
   return Api::NewHandle(isolate, Array::MakeArray(import_list));
 }
 
 
 DART_EXPORT Dart_Handle Dart_GetLibraryURL(intptr_t library_id) {
@@ skipping 45 matching lines @@
   return Api::CastIsolate(isolate);
 }
 
 
 DART_EXPORT Dart_IsolateId Dart_GetIsolateId(Dart_Isolate dart_isolate) {
   Isolate* isolate = reinterpret_cast<Isolate*>(dart_isolate);
   return isolate->debugger()->GetIsolateId();
 }
 
 }  // namespace dart