[ESnext] Implement Promise.prototype.finally

src/contexts.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_CONTEXTS_H_
 #define V8_CONTEXTS_H_
 
 #include "src/heap/heap.h"
 #include "src/objects.h"
 
@@ skipping 272 matching lines @@
   V(PROXY_CALLABLE_MAP_INDEX, Map, proxy_callable_map)                         \
   V(PROXY_CONSTRUCTOR_MAP_INDEX, Map, proxy_constructor_map)                   \
   V(PROXY_FUNCTION_INDEX, JSFunction, proxy_function)                          \
   V(PROXY_FUNCTION_MAP_INDEX, Map, proxy_function_map)                         \
   V(PROXY_MAP_INDEX, Map, proxy_map)                                           \
   V(PROMISE_GET_CAPABILITIES_EXECUTOR_SHARED_FUN, SharedFunctionInfo,          \
     promise_get_capabilities_executor_shared_fun)                              \
   V(PROMISE_RESOLVE_SHARED_FUN, SharedFunctionInfo,                            \
     promise_resolve_shared_fun)                                                \
   V(PROMISE_REJECT_SHARED_FUN, SharedFunctionInfo, promise_reject_shared_fun)  \
+  V(PROMISE_THEN_FINALLY_SHARED_FUN, SharedFunctionInfo,                       \
+    promise_then_finally_shared_fun)                                           \
+  V(PROMISE_CATCH_FINALLY_SHARED_FUN, SharedFunctionInfo,                      \
+    promise_catch_finally_shared_fun)                                          \
+  V(PROMISE_VALUE_THUNK_FINALLY_SHARED_FUN, SharedFunctionInfo,                \
+    promise_value_thunk_finally_shared_fun)                                    \
+  V(PROMISE_THROWER_FINALLY_SHARED_FUN, SharedFunctionInfo,                    \
+    promise_thrower_finally_shared_fun)                                        \
   V(PROMISE_PROTOTYPE_MAP_INDEX, Map, promise_prototype_map)                   \
   V(REGEXP_EXEC_FUNCTION_INDEX, JSFunction, regexp_exec_function)              \
   V(REGEXP_FUNCTION_INDEX, JSFunction, regexp_function)                        \
   V(REGEXP_LAST_MATCH_INFO_INDEX, RegExpMatchInfo, regexp_last_match_info)     \
   V(REGEXP_INTERNAL_MATCH_INFO_INDEX, RegExpMatchInfo,                         \
     regexp_internal_match_info)                                                \
   V(REGEXP_PROTOTYPE_MAP_INDEX, Map, regexp_prototype_map)                     \
   V(REGEXP_RESULT_MAP_INDEX, Map, regexp_result_map)                           \
   V(SCRIPT_CONTEXT_TABLE_INDEX, ScriptContextTable, script_context_table)      \
   V(SCRIPT_FUNCTION_INDEX, JSFunction, script_function)                        \
@@ skipping 382 matching lines @@
   STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize);
   STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex);
 };
 
 typedef Context::Field ContextField;
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CONTEXTS_H_