Provide handle scope when printing stack trace for debugging.

src/isolate.cc

 // Copyright 2012 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/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
@@ skipping 805 matching lines @@
   StackFrameIterator it(isolate);
   for (int i = 0; !it.done(); it.Advance()) {
     it.frame()->Print(accumulator, mode, i++);
   }
 }
 
 
 void Isolate::PrintStack(StringStream* accumulator, PrintStackMode mode) {
   // The MentionedObjectCache is not GC-proof at the moment.
   DisallowHeapAllocation no_gc;
+  HandleScope scope(this);
   DCHECK(accumulator->IsMentionedObjectCacheClear(this));
 
   // Avoid printing anything if there are no frames.
   if (c_entry_fp(thread_local_top()) == 0) return;
 
   accumulator->Add(
       "\n==== JS stack trace =========================================\n\n");
   PrintFrames(this, accumulator, StackFrame::OVERVIEW);
   if (mode == kPrintStackVerbose) {
     accumulator->Add(
@@ skipping 2250 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8