Remove materialized objects on stack unwind.

src/runtime/runtime-internal.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/v8.h"
 
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/debug.h"
 #include "src/messages.h"
@@ skipping 19 matching lines @@
 }
 
 
 RUNTIME_FUNCTION(Runtime_ReThrow) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   return isolate->ReThrow(args[0]);
 }
 
 
-RUNTIME_FUNCTION(Runtime_FindExceptionHandler) {
+RUNTIME_FUNCTION(Runtime_UnwindAndFindExceptionHandler) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
-  return isolate->FindHandler();
+  return isolate->UnwindAndFindHandler();
 }
 
 
 RUNTIME_FUNCTION(Runtime_PromoteScheduledException) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
   return isolate->PromoteScheduledException();
 }
 
 
@@ skipping 347 matching lines @@
   return args[0];
 }
 
 
 RUNTIME_FUNCTION(Runtime_HarmonyToString) {
   // TODO(caitp): Delete this runtime method when removing --harmony-tostring
   return isolate->heap()->ToBoolean(FLAG_harmony_tostring);
 }
 }
 }  // namespace v8::internal