[interpreter] Rename HandlerTable::depth field.

src/debug/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/debug/debug.h"
 
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 804 matching lines @@
   if (!is_active()) return;
   if (last_step_action() == StepNone) return;
   if (in_debug_scope()) return;
 
   ClearOneShot();
 
   // Iterate through the JavaScript stack looking for handlers.
   JavaScriptFrameIterator it(isolate_);
   while (!it.done()) {
     JavaScriptFrame* frame = it.frame();
-    int stack_slots = 0;  // The computed stack slot count is not used.
-    if (frame->LookupExceptionHandlerInTable(&stack_slots, NULL) > 0) break;
+    if (frame->LookupExceptionHandlerInTable(nullptr, nullptr) > 0) break;
     it.Advance();
   }
 
   // Find the closest Javascript frame we can flood with one-shots.
   while (!it.done() &&
          !it.frame()->function()->shared()->IsSubjectToDebugging()) {
     it.Advance();
   }
 
   if (it.done()) return;  // No suitable Javascript catch handler.
@@ skipping 1624 matching lines @@
 }
 
 
 void LockingCommandMessageQueue::Clear() {
   base::LockGuard<base::Mutex> lock_guard(&mutex_);
   queue_.Clear();
 }
 
 }  // namespace internal
 }  // namespace v8