[stubs] Port CreateWeakCellStub to turbofan

src/interpreter/interpreter-assembler.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/interpreter/interpreter-assembler.h"
 
 #include <limits>
 #include <ostream>
 
 #include "src/code-factory.h"
@@ skipping 530 matching lines @@
       Node* is_same_native_context =
           WordEqual(native_context, LoadNativeContext(context));
       GotoUnless(is_same_native_context, &mark_megamorphic);
 
       // Initialize it to a monomorphic target.
       Node* call_count_slot = IntPtrAdd(slot_id, IntPtrConstant(1));
       // Count is Smi, so we don't need a write barrier.
       StoreFixedArrayElement(type_feedback_vector, call_count_slot,
                              SmiTag(Int32Constant(1)), SKIP_WRITE_BARRIER);
 
-      CreateWeakCellStub weak_cell_stub(isolate());
-      CallStub(weak_cell_stub.GetCallInterfaceDescriptor(),
-               HeapConstant(weak_cell_stub.GetCode()), context,
-               type_feedback_vector, SmiTag(slot_id), function);
+      CreateWeakCellInFeedbackVector(type_feedback_vector, SmiTag(slot_id),

[Benedikt Meurer, 2016/07/28 10:30:45]

Awesome!

+                                     function);
 
       // Call using call function builtin.
       Callable callable = CodeFactory::InterpreterPushArgsAndCall(
           isolate(), tail_call_mode, CallableType::kJSFunction);
       Node* code_target = HeapConstant(callable.code());
       Node* ret_value = CallStub(callable.descriptor(), code_target, context,
                                  arg_count, first_arg, function);
       return_value.Bind(ret_value);
       Goto(&end);
     }
@@ skipping 429 matching lines @@
     Goto(&loop);
   }
   Bind(&done_loop);
 
   return array;
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8