Reland "Postpone termination exceptions in debug scope."

src/debug.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/v8.h"
 
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 3056 matching lines @@
   HandleScope scope(isolate_);
   DebugScope debug_scope(this);
   if (debug_scope.failed()) return;
 
   // Notify the debug event listeners. Indicate auto continue if the break was
   // a debug command break.
   OnDebugBreak(isolate_->factory()->undefined_value(), debug_command_only);
 }
 
 
-DebugScope::DebugScope(Debug* debug) : debug_(debug),
-                                       prev_(debug->debugger_entry()),
-                                       save_(debug_->isolate_) {
+DebugScope::DebugScope(Debug* debug)
+    : debug_(debug),
+      prev_(debug->debugger_entry()),
+      save_(debug_->isolate_),
+      no_termination_exceptons_(debug_->isolate_,
+                                StackGuard::TERMINATE_EXECUTION) {
   // Link recursive debugger entry.
   debug_->thread_local_.current_debug_scope_ = this;
 
   // Store the previous break id and frame id.
   break_id_ = debug_->break_id();
   break_frame_id_ = debug_->break_frame_id();
 
   // Create the new break info. If there is no JavaScript frames there is no
   // break frame id.
   JavaScriptFrameIterator it(isolate());
@@ skipping 281 matching lines @@
   logger_->DebugEvent("Put", message.text());
 }
 
 
 void LockingCommandMessageQueue::Clear() {
   base::LockGuard<base::Mutex> lock_guard(&mutex_);
   queue_.Clear();
 }
 
 } }  // namespace v8::internal