Remove CallFunctionStub, always call through the Call builtin (also from CallIC)

src/crankshaft/hydrogen-instructions.h

 // 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.
 
 #ifndef V8_CRANKSHAFT_HYDROGEN_INSTRUCTIONS_H_
 #define V8_CRANKSHAFT_HYDROGEN_INSTRUCTIONS_H_
 
 #include <cstring>
 #include <iosfwd>
 
@@ skipping 2377 matching lines @@
 
   Handle<JSFunction> known_function_;
   int formal_parameter_count_;
   bool has_stack_check_;
 };
 
 
 class HCallFunction final : public HBinaryCall {
  public:
   DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallFunction, HValue*, int);
-  DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(
-      HCallFunction, HValue*, int, CallFunctionFlags);
 
   HValue* context() const { return first(); }
   HValue* function() const { return second(); }
-  CallFunctionFlags function_flags() const { return function_flags_; }
 
   FeedbackVectorSlot slot() const { return slot_; }
   Handle<TypeFeedbackVector> feedback_vector() const {
     return feedback_vector_;
   }
   bool HasVectorAndSlot() const { return !feedback_vector_.is_null(); }
   void SetVectorAndSlot(Handle<TypeFeedbackVector> vector,
                         FeedbackVectorSlot slot) {
     feedback_vector_ = vector;
     slot_ = slot;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(CallFunction)
 
   std::ostream& PrintDataTo(std::ostream& os) const override;  // NOLINT
 
   int argument_delta() const override { return -argument_count(); }
 
  private:
-  HCallFunction(HValue* context, HValue* function, int argument_count,
-                CallFunctionFlags flags = NO_CALL_FUNCTION_FLAGS)
-      : HBinaryCall(context, function, argument_count),
-        function_flags_(flags) {}
-  CallFunctionFlags function_flags_;
+  HCallFunction(HValue* context, HValue* function, int argument_count)
+      : HBinaryCall(context, function, argument_count) {}
   Handle<TypeFeedbackVector> feedback_vector_;
   FeedbackVectorSlot slot_;
 };
 
 
 class HCallNew final : public HBinaryCall {
  public:
   DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P2(HCallNew, HValue*, int);
 
   HValue* context() { return first(); }
@@ skipping 5478 matching lines @@
 
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_HYDROGEN_INSTRUCTIONS_H_