Handle StepIn for constructors through PrepareStep just like for regular calls

src/objects.cc

 // Copyright 2013 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/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 1038 matching lines @@
   // behavior the same between hardware and simulators.
   StackLimitCheck check(isolate);
   if (check.JsHasOverflowed()) {
     isolate->StackOverflow();
     return MaybeHandle<Object>();
   }
 
   Debug* debug = isolate->debug();
   // Handle stepping into a getter if step into is active.
   // TODO(rossberg): should this apply to getters that are function proxies?
-  if (debug->is_active()) debug->HandleStepIn(getter, false);
+  if (debug->is_active()) debug->HandleStepIn(getter);
 
   return Execution::Call(isolate, getter, receiver, 0, NULL);
 }
 
 
 Maybe<bool> Object::SetPropertyWithDefinedSetter(Handle<Object> receiver,
                                                  Handle<JSReceiver> setter,
                                                  Handle<Object> value,
                                                  ShouldThrow should_throw) {
   Isolate* isolate = setter->GetIsolate();
 
   Debug* debug = isolate->debug();
   // Handle stepping into a setter if step into is active.
   // TODO(rossberg): should this apply to getters that are function proxies?
-  if (debug->is_active()) debug->HandleStepIn(setter, false);
+  if (debug->is_active()) debug->HandleStepIn(setter);
 
   Handle<Object> argv[] = { value };
   RETURN_ON_EXCEPTION_VALUE(isolate, Execution::Call(isolate, setter, receiver,
                                                      arraysize(argv), argv),
                             Nothing<bool>());
   return Just(true);
 }
 
 
 // static
@@ skipping 17108 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8