[runtime] Rewrite Function.prototype.toString in C++.

src/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_H_
 #define V8_BUILTINS_H_
 
 #include "src/base/flags.h"
 #include "src/handles.h"
 
@@ skipping 49 matching lines @@
   V(ArrayIsArray, kNone)                        \
   V(ArrayPop, kNone)                            \
   V(ArrayPush, kNone)                           \
   V(ArrayShift, kNone)                          \
   V(ArraySlice, kNone)                          \
   V(ArraySplice, kNone)                         \
   V(ArrayUnshift, kNone)                        \
                                                 \
   V(DateToPrimitive, kNone)                     \
                                                 \
+  V(FunctionPrototypeToString, kNone)           \
+                                                \
   V(ObjectAssign, kNone)                        \
   V(ObjectProtoToString, kNone)                 \
                                                 \
   V(ProxyConstructor, kNone)                    \
   V(ProxyConstructor_ConstructStub, kTarget)    \
                                                 \
   V(ReflectDefineProperty, kNone)               \
   V(ReflectDeleteProperty, kNone)               \
   V(ReflectGet, kNone)                          \
   V(ReflectGetOwnPropertyDescriptor, kNone)     \
@@ skipping 81 matching lines @@
     kNoExtraICState)                                                           \
   V(KeyedStoreIC_Megamorphic, KEYED_STORE_IC, MEGAMORPHIC, kNoExtraICState)    \
                                                                                \
   V(KeyedStoreIC_Initialize_Strict, KEYED_STORE_IC, UNINITIALIZED,             \
     StoreICState::kStrictModeState)                                            \
   V(KeyedStoreIC_PreMonomorphic_Strict, KEYED_STORE_IC, PREMONOMORPHIC,        \
     StoreICState::kStrictModeState)                                            \
   V(KeyedStoreIC_Megamorphic_Strict, KEYED_STORE_IC, MEGAMORPHIC,              \
     StoreICState::kStrictModeState)                                            \
                                                                                \
-  V(FunctionCall, BUILTIN, UNINITIALIZED, kNoExtraICState)                     \
-  V(FunctionApply, BUILTIN, UNINITIALIZED, kNoExtraICState)                    \
+  V(FunctionPrototypeApply, BUILTIN, UNINITIALIZED, kNoExtraICState)           \
+  V(FunctionPrototypeCall, BUILTIN, UNINITIALIZED, kNoExtraICState)            \
   V(ReflectApply, BUILTIN, UNINITIALIZED, kNoExtraICState)                     \
   V(ReflectConstruct, BUILTIN, UNINITIALIZED, kNoExtraICState)                 \
                                                                                \
   V(InternalArrayCode, BUILTIN, UNINITIALIZED, kNoExtraICState)                \
   V(ArrayCode, BUILTIN, UNINITIALIZED, kNoExtraICState)                        \
                                                                                \
   V(StringConstructor, BUILTIN, UNINITIALIZED, kNoExtraICState)                \
   V(StringConstructor_ConstructStub, BUILTIN, UNINITIALIZED, kNoExtraICState)  \
                                                                                \
   V(OnStackReplacement, BUILTIN, UNINITIALIZED, kNoExtraICState)               \
@@ skipping 167 matching lines @@
 
   // ES6 section 9.2.2 [[Construct]] ( argumentsList, newTarget)
   static void Generate_ConstructFunction(MacroAssembler* masm);
   // ES6 section 9.5.14 [[Construct]] ( argumentsList, newTarget)
   static void Generate_ConstructProxy(MacroAssembler* masm);
   // ES6 section 7.3.13 Construct (F, [argumentsList], [newTarget])
   static void Generate_Construct(MacroAssembler* masm);
 
   static void Generate_HandleFastApiCall(MacroAssembler* masm);
 
-  static void Generate_FunctionCall(MacroAssembler* masm);
-  static void Generate_FunctionApply(MacroAssembler* masm);
+  static void Generate_FunctionPrototypeApply(MacroAssembler* masm);
+  static void Generate_FunctionPrototypeCall(MacroAssembler* masm);
   static void Generate_ReflectApply(MacroAssembler* masm);
   static void Generate_ReflectConstruct(MacroAssembler* masm);
 
   static void Generate_InternalArrayCode(MacroAssembler* masm);
   static void Generate_ArrayCode(MacroAssembler* masm);
 
   static void Generate_StringConstructor(MacroAssembler* masm);
   static void Generate_StringConstructor_ConstructStub(MacroAssembler* masm);
   static void Generate_OnStackReplacement(MacroAssembler* masm);
   static void Generate_OsrAfterStackCheck(MacroAssembler* masm);
@@ skipping 27 matching lines @@
   friend class BuiltinFunctionTable;
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_H_