[ESnext] Implement Promise.prototype.finally

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/globals.h"
 
@@ skipping 648 matching lines @@
   TFJ(PromiseResolveClosure, 1)                                                \
   TFJ(PromiseRejectClosure, 1)                                                 \
   TFJ(PromiseThen, 2)                                                          \
   TFJ(PromiseCatch, 1)                                                         \
   TFJ(ResolvePromise, 2)                                                       \
   TFS(PromiseHandleReject, BUILTIN, kNoExtraICState, PromiseHandleReject, 1)   \
   TFJ(PromiseHandle, 5)                                                        \
   TFJ(PromiseResolve, 1)                                                       \
   TFJ(PromiseReject, 1)                                                        \
   TFJ(InternalPromiseReject, 3)                                                \
+  TFJ(PromiseFinally, 1)                                                       \
+  TFJ(PromiseThenFinally, 1)                                                   \
+  TFJ(PromiseCatchFinally, 1)                                                  \
+  TFJ(PromiseValueThunkFinally, 0)                                             \
+  TFJ(PromiseThrowerFinally, 0)                                                \
                                                                                \
   /* Proxy */                                                                  \
   CPP(ProxyConstructor)                                                        \
   CPP(ProxyConstructor_ConstructStub)                                          \
                                                                                \
   /* Reflect */                                                                \
   ASM(ReflectApply)                                                            \
   ASM(ReflectConstruct)                                                        \
   CPP(ReflectDefineProperty)                                                   \
   CPP(ReflectDeleteProperty)                                                   \
@@ skipping 275 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_H_