[turbofan] Introduce JSCallForwardVarargs operator.

src/builtins/builtins.h

 // Copyright 2011 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_BUILTINS_BUILTINS_H_
 #define V8_BUILTINS_BUILTINS_H_
 
 #include "src/base/flags.h"
 #include "src/handles.h"
 
@@ skipping 57 matching lines @@
   ASM(CallBoundFunction)                                                       \
   ASM(TailCallBoundFunction)                                                   \
   /* ES6 section 7.3.12 Call(F, V, [argumentsList]) */                         \
   ASM(Call_ReceiverIsNullOrUndefined)                                          \
   ASM(Call_ReceiverIsNotNullOrUndefined)                                       \
   ASM(Call_ReceiverIsAny)                                                      \
   ASM(TailCall_ReceiverIsNullOrUndefined)                                      \
   ASM(TailCall_ReceiverIsNotNullOrUndefined)                                   \
   ASM(TailCall_ReceiverIsAny)                                                  \
   ASM(CallWithSpread)                                                          \
+  ASM(CallForwardVarargs)                                                      \
+  ASM(CallFunctionForwardVarargs)                                              \
                                                                                \
   /* Construct */                                                              \
   /* ES6 section 9.2.2 [[Construct]] ( argumentsList, newTarget) */            \
   ASM(ConstructFunction)                                                       \
   /* ES6 section 9.4.1.2 [[Construct]] (argumentsList, newTarget) */           \
   ASM(ConstructBoundFunction)                                                  \
   ASM(ConstructedNonConstructable)                                             \
   /* ES6 section 9.5.14 [[Construct]] ( argumentsList, newTarget) */           \
   ASM(ConstructProxy)                                                          \
   /* ES6 section 7.3.13 Construct (F, [argumentsList], [newTarget]) */         \
@@ skipping 808 matching lines @@
 
   static void Generate_CallFunction(MacroAssembler* masm,
                                     ConvertReceiverMode mode,
                                     TailCallMode tail_call_mode);
 
   static void Generate_CallBoundFunctionImpl(MacroAssembler* masm,
                                              TailCallMode tail_call_mode);
 
   static void Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode,
                             TailCallMode tail_call_mode);
+  static void Generate_CallForwardVarargs(MacroAssembler* masm,
+                                          Handle<Code> code);
 
   static void Generate_InterpreterPushArgsAndCallImpl(
       MacroAssembler* masm, TailCallMode tail_call_mode,
       InterpreterPushArgsMode mode);
 
   static void Generate_InterpreterPushArgsAndConstructImpl(
       MacroAssembler* masm, InterpreterPushArgsMode mode);
 
   enum class MathMaxMinKind { kMax, kMin };
   static void Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind);
@@ skipping 17 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_H_