Handlify DeoptimizedFrameInfo, remove custom GC iteration.

src/runtime/runtime-debug.cc

Index: src/runtime/runtime-debug.cc
diff --git a/src/runtime/runtime-debug.cc b/src/runtime/runtime-debug.cc
index 2be6c97493e2269078baacbc032671a736c3241f..e0e1ae0bd35e3f944fc6fe1e7162b5eac13d8b7a 100644
--- a/src/runtime/runtime-debug.cc
+++ b/src/runtime/runtime-debug.cc
@@ -528,7 +528,8 @@ RUNTIME_FUNCTION(Runtime_GetFrameDetails) {
   bool constructor = frame_inspector.IsConstructor();
 
   // Get scope info and read from it for local variable information.
-  Handle<JSFunction> function(JSFunction::cast(frame_inspector.GetFunction()));
+  Handle<JSFunction> function =
+      Handle<JSFunction>::cast(frame_inspector.GetFunction());
   RUNTIME_ASSERT(function->shared()->IsSubjectToDebugging());
   Handle<SharedFunctionInfo> shared(function->shared());
   Handle<ScopeInfo> scope_info(shared->scope_info());
@@ -552,13 +553,13 @@ RUNTIME_FUNCTION(Runtime_GetFrameDetails) {
     // Use the value from the stack.
     if (scope_info->LocalIsSynthetic(i)) continue;
     locals->set(local * 2, scope_info->LocalName(i));
-    locals->set(local * 2 + 1, frame_inspector.GetExpression(i));
+    locals->set(local * 2 + 1, *(frame_inspector.GetExpression(i)));
     local++;
   }
   if (local < local_count) {
     // Get the context containing declarations.
     Handle<Context> context(
-        Context::cast(frame_inspector.GetContext())->closure_context());
+        Handle<Context>::cast(frame_inspector.GetContext())->closure_context());
     for (; i < scope_info->LocalCount(); ++i) {
       if (scope_info->LocalIsSynthetic(i)) continue;
       Handle<String> name(scope_info->LocalName(i));
@@ -637,7 +638,7 @@ RUNTIME_FUNCTION(Runtime_GetFrameDetails) {
   details->set(kFrameDetailsFrameIdIndex, *frame_id);
 
   // Add the function (same as in function frame).
-  details->set(kFrameDetailsFunctionIndex, frame_inspector.GetFunction());
+  details->set(kFrameDetailsFunctionIndex, *(frame_inspector.GetFunction()));
 
   // Add the arguments count.
   details->set(kFrameDetailsArgumentCountIndex, Smi::FromInt(argument_count));
@@ -687,7 +688,7 @@ RUNTIME_FUNCTION(Runtime_GetFrameDetails) {
     // Parameter value.
     if (i < frame_inspector.GetParametersCount()) {
       // Get the value from the stack.
-      details->set(details_index++, frame_inspector.GetParameter(i));
+      details->set(details_index++, *(frame_inspector.GetParameter(i)));
     } else {
       details->set(details_index++, heap->undefined_value());
     }