[debugger] Simplify deletion of DeoptimizedFrameInfo.

src/debug/debug-frames.cc

 // Copyright 2015 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-frames.h"
 
 #include "src/frames-inl.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 13 matching lines @@
         !FLAG_turbo_asm_deoptimization) {
       is_optimized_ = false;
       return;
     }
 
     deoptimized_frame_ = Deoptimizer::DebuggerInspectableFrame(
         frame, inlined_jsframe_index, isolate);
   }
 }
 
-
 FrameInspector::~FrameInspector() {
   // Get rid of the calculated deoptimized frame if any.
-  if (deoptimized_frame_ != NULL) {
-    Deoptimizer::DeleteDebuggerInspectableFrame(deoptimized_frame_, isolate_);
+  if (deoptimized_frame_ != nullptr) {

[Benedikt Meurer, 2016/06/29 09:56:45]

You don't need this check, delete already does a nullptr check.

+    delete deoptimized_frame_;
   }
 }
 
-
 int FrameInspector::GetParametersCount() {
   return is_optimized_ ? deoptimized_frame_->parameters_count()
                        : frame_->ComputeParametersCount();
 }
 
 Handle<Object> FrameInspector::GetFunction() {
   return is_optimized_ ? deoptimized_frame_->GetFunction()
                        : handle(frame_->function(), isolate_);
 }
 
@@ skipping 168 matching lines @@
       if (!frames[i].function()->shared()->IsSubjectToDebugging()) continue;
       if (++count == index) return i;
     }
   }
   return -1;
 }
 
 
 }  // namespace internal
 }  // namespace v8