Fix SealHandleScope usage in runtime-classes.cc

src/runtime/runtime-classes.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include <stdlib.h>
 #include <limits>
 
 #include "src/accessors.h"
@@ skipping 444 matching lines @@
 
   RETURN_RESULT_OR_FAILURE(
       isolate,
       StoreKeyedToSuper(isolate, home_object, receiver, key, value, SLOPPY));
 }
 
 
 RUNTIME_FUNCTION(Runtime_GetSuperConstructor) {
   SealHandleScope shs(isolate);
   DCHECK_EQ(1, args.length());
-  CONVERT_ARG_HANDLE_CHECKED(JSFunction, active_function, 0);
+  CONVERT_ARG_CHECKED(JSFunction, active_function, 0);
   Object* prototype = active_function->map()->prototype();
   if (!prototype->IsConstructor()) {
-    return ThrowNotSuperConstructor(
-        isolate, Handle<JSFunction>::cast(handle(prototype, isolate)),
-        active_function);
+    HandleScope scope(isolate);
+    return ThrowNotSuperConstructor(isolate, handle(prototype, isolate),
+                                    handle(active_function, isolate));
   }
   return prototype;
 }
 
 RUNTIME_FUNCTION(Runtime_NewWithSpread) {
   HandleScope scope(isolate);
   DCHECK_LE(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, constructor, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, new_target, 1);
 
@@ skipping 29 matching lines @@
   }
 
   // Call the constructor.
   RETURN_RESULT_OR_FAILURE(
       isolate, Execution::New(isolate, constructor, new_target, result_length,
                               construct_args.start()));
 }
 
 }  // namespace internal
 }  // namespace v8