Debugger: clear ICs on activating step-in to correctly flood accessor pairs.

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 <iomanip>
 #include <sstream>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 422 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, Handle<Object>::null(), 0, false);
-  }
+  if (debug->is_active()) debug->HandleStepIn(getter, false);
 
   return Execution::Call(isolate, getter, receiver, 0, NULL, true);
 }
 
 
 MaybeHandle<Object> Object::SetPropertyWithDefinedSetter(
     Handle<Object> receiver,
     Handle<JSReceiver> setter,
     Handle<Object> value) {
   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, Handle<Object>::null(), 0, false);
-  }
+  if (debug->is_active()) debug->HandleStepIn(setter, false);
 
   Handle<Object> argv[] = { value };
   RETURN_ON_EXCEPTION(isolate, Execution::Call(isolate, setter, receiver,
                                                arraysize(argv), argv, true),
                       Object);
   return value;
 }
 
 
 static bool FindAllCanReadHolder(LookupIterator* it) {
@@ skipping 15658 matching lines @@
                                             Handle<Object> new_value) {
   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