Remove flags for ES2015 features shipped in M48

src/bootstrapper.cc

 // Copyright 2014 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.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/code-stubs.h"
 #include "src/extensions/externalize-string-extension.h"
@@ skipping 2276 matching lines @@
 
 #define INITIALIZE_FLAG(FLAG)                                         \
   {                                                                   \
     Handle<String> name =                                             \
         isolate->factory()->NewStringFromAsciiChecked(#FLAG);         \
     JSObject::AddProperty(container, name,                            \
                           isolate->factory()->ToBoolean(FLAG), NONE); \
   }
 
   INITIALIZE_FLAG(FLAG_harmony_tostring)
-  INITIALIZE_FLAG(FLAG_harmony_tolength)
   INITIALIZE_FLAG(FLAG_harmony_species)
 
 #undef INITIALIZE_FLAG
 }
 
 
 #define EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(id) \
   void Genesis::InitializeGlobal_##id() {}
 
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_modules)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy_function)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy_let)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_default_parameters)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_destructuring_bind)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_destructuring_assignment)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_object_observe)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexps)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_unicode_regexps)
-EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_completion)
-EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_tolength)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_do_expressions)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexp_lookbehind)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_function_name)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_function_sent)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(promise_extra)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_tailcalls)
 
 void InstallPublicSymbol(Factory* factory, Handle<Context> native_context,
                          const char* name, Handle<Symbol> value) {
   Handle<JSGlobalObject> global(
       JSGlobalObject::cast(native_context->global_object()));
   Handle<String> symbol_string = factory->InternalizeUtf8String("Symbol");
   Handle<JSObject> symbol = Handle<JSObject>::cast(
       JSObject::GetProperty(global, symbol_string).ToHandleChecked());
   Handle<String> name_string = factory->InternalizeUtf8String(name);
   PropertyAttributes attributes =
       static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);
   JSObject::AddProperty(symbol, name_string, value, attributes);
 }
 
 
 void Genesis::InitializeGlobal_harmony_tostring() {
   if (!FLAG_harmony_tostring) return;
   InstallPublicSymbol(factory(), native_context(), "toStringTag",
                       factory()->to_string_tag_symbol());
 }
 
 
-void Genesis::InitializeGlobal_harmony_concat_spreadable() {
-  if (!FLAG_harmony_concat_spreadable) return;
-  InstallPublicSymbol(factory(), native_context(), "isConcatSpreadable",
-                      factory()->is_concat_spreadable_symbol());
-}
-
-
 void Genesis::InitializeGlobal_harmony_regexp_subclass() {
   if (!FLAG_harmony_regexp_subclass) return;
   InstallPublicSymbol(factory(), native_context(), "match",
                       factory()->match_symbol());
   InstallPublicSymbol(factory(), native_context(), "replace",
                       factory()->replace_symbol());
   InstallPublicSymbol(factory(), native_context(), "search",
                       factory()->search_symbol());
   InstallPublicSymbol(factory(), native_context(), "split",
                       factory()->split_symbol());
@@ skipping 578 matching lines @@
       "native harmony-unicode-regexps.js", nullptr};
   static const char* harmony_default_parameters_natives[] = {nullptr};
   static const char* harmony_reflect_natives[] = {"native harmony-reflect.js",
                                                   nullptr};
   static const char* harmony_destructuring_bind_natives[] = {nullptr};
   static const char* harmony_destructuring_assignment_natives[] = {nullptr};
   static const char* harmony_object_observe_natives[] = {
       "native harmony-object-observe.js", nullptr};
   static const char* harmony_sharedarraybuffer_natives[] = {
       "native harmony-sharedarraybuffer.js", "native harmony-atomics.js", NULL};
-  static const char* harmony_concat_spreadable_natives[] = {nullptr};
   static const char* harmony_simd_natives[] = {"native harmony-simd.js",
                                                nullptr};
-  static const char* harmony_tolength_natives[] = {nullptr};
-  static const char* harmony_completion_natives[] = {nullptr};
   static const char* harmony_do_expressions_natives[] = {nullptr};
   static const char* harmony_regexp_subclass_natives[] = {nullptr};
   static const char* harmony_regexp_lookbehind_natives[] = {nullptr};
   static const char* harmony_function_name_natives[] = {nullptr};
   static const char* harmony_function_sent_natives[] = {nullptr};
   static const char* promise_extra_natives[] = {"native promise-extra.js",
                                                 nullptr};
   static const char* harmony_object_values_entries_natives[] = {nullptr};
 
   for (int i = ExperimentalNatives::GetDebuggerCount();
@@ skipping 662 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8