Reland "[Intl] move Date.prototype.toLocale{,Date,Time}String to C++"

This is a reland of 8e57cd51

Original change's description:
> [Intl] move Date.prototype.toLocale{,Date,Time}String to C++
> 
> Bug: v8:7961
> Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
> Change-Id: Ie75eb443fc0907a4e1e4cafd4f5c06c23794f5a9
> Reviewed-on: https://chromium-review.googlesource.com/1156123
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55239}

Bug: v8:7961
Change-Id: Ib7dd3b7b3d363b7b8cb2dcd89a5d591fab592c81
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/1185763Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55368}

src/bootstrapper.cc

@@ -2317,6 +2317,14 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
     SimpleInstallFunction(isolate_, prototype, "toJSON",
                           Builtins::kDatePrototypeToJson, 1, false);
 
+#ifdef V8_INTL_SUPPORT
+    SimpleInstallFunction(isolate_, prototype, "toLocaleString",
+                          Builtins::kDatePrototypeToLocaleString, 0, false);
+    SimpleInstallFunction(isolate_, prototype, "toLocaleDateString",
+                          Builtins::kDatePrototypeToLocaleDateString, 0, false);
+    SimpleInstallFunction(isolate_, prototype, "toLocaleTimeString",
+                          Builtins::kDatePrototypeToLocaleTimeString, 0, false);
+#else
     // Install Intl fallback functions.
     SimpleInstallFunction(isolate_, prototype, "toLocaleString",
                           Builtins::kDatePrototypeToString, 0, false);
@@ -2324,6 +2332,7 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
                           Builtins::kDatePrototypeToDateString, 0, false);
     SimpleInstallFunction(isolate_, prototype, "toLocaleTimeString",
                           Builtins::kDatePrototypeToTimeString, 0, false);
+#endif  // V8_INTL_SUPPORT
 
     // Install the @@toPrimitive function.
     Handle<JSFunction> to_primitive = InstallFunction(

src/builtins/builtins-date.cc

@@ -10,6 +10,9 @@
 #include "src/counters.h"
 #include "src/dateparser-inl.h"
 #include "src/objects-inl.h"
+#ifdef V8_INTL_SUPPORT
+#include "src/objects/intl-objects.h"
+#endif
 
 namespace v8 {
 namespace internal {
@@ -835,6 +838,53 @@ BUILTIN(DatePrototypeToTimeString) {
       isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer)));
 }
 
+#ifdef V8_INTL_SUPPORT
+// ecma402 #sup-date.prototype.tolocaledatestring
+BUILTIN(DatePrototypeToLocaleDateString) {
+  HandleScope scope(isolate);
+  CHECK_RECEIVER(JSDate, date, "Date.prototype.toLocaleDateString");
+  RETURN_RESULT_OR_FAILURE(
+      isolate,
+      DateFormat::ToLocaleDateTime(isolate,
+                                   date,                            // date
+                                   args.atOrUndefined(isolate, 1),  // locales
+                                   args.atOrUndefined(isolate, 2),  // options
+                                   "date",                          // required
+                                   "date",                          // defaults
+                                   "dateformatdate"));              // service
+}
+
+// ecma402 #sup-date.prototype.tolocalestring
+BUILTIN(DatePrototypeToLocaleString) {
+  HandleScope scope(isolate);
+  CHECK_RECEIVER(JSDate, date, "Date.prototype.toLocaleString");
+  RETURN_RESULT_OR_FAILURE(
+      isolate,
+      DateFormat::ToLocaleDateTime(isolate,
+                                   date,                            // date
+                                   args.atOrUndefined(isolate, 1),  // locales
+                                   args.atOrUndefined(isolate, 2),  // options
+                                   "any",                           // required
+                                   "all",                           // defaults
+                                   "dateformatall"));               // service
+}
+
+// ecma402 #sup-date.prototype.tolocaletimestring
+BUILTIN(DatePrototypeToLocaleTimeString) {
+  HandleScope scope(isolate);
+  CHECK_RECEIVER(JSDate, date, "Date.prototype.toLocaleTimeString");
+  RETURN_RESULT_OR_FAILURE(
+      isolate,
+      DateFormat::ToLocaleDateTime(isolate,
+                                   date,                            // date
+                                   args.atOrUndefined(isolate, 1),  // locales
+                                   args.atOrUndefined(isolate, 2),  // options
+                                   "time",                          // required
+                                   "time",                          // defaults
+                                   "dateformattime"));              // service
+}
+#endif  // V8_INTL_SUPPORT
+
 // ES6 section 20.3.4.43 Date.prototype.toUTCString ( )
 BUILTIN(DatePrototypeToUTCString) {
   HandleScope scope(isolate);

src/builtins/builtins-definitions.h

@@ -1338,6 +1338,12 @@ namespace internal {
   CPP(NumberFormatPrototypeFormatToParts)                              \
   /* ecma402 #sec-intl.datetimeformat.prototype.formattoparts */       \
   CPP(DateTimeFormatPrototypeFormatToParts)                            \
+  /* ecma402 #sup-date.prototype.tolocaledatestring */                 \
+  CPP(DatePrototypeToLocaleDateString)                                 \
+  /* ecma402 #sup-date.prototype.tolocalestring */                     \
+  CPP(DatePrototypeToLocaleString)                                     \
+  /* ecma402 #sup-date.prototype.tolocaletimestring */                 \
+  CPP(DatePrototypeToLocaleTimeString)                                 \
   /* ecma402 #new proposal */                                          \
   /* ecma402 #sec-intl-listformat-constructor */                       \
   CPP(ListFormatConstructor)                                           \

src/js/intl.js

@@ -1510,51 +1510,4 @@ function cachedOrNewService(service, locales, options, defaults) {
   "cached_or_new_service", cachedOrNewService
 ]);
 
-/**
- * Formats a Date object (this) using locale and options values.
- * If locale or options are omitted, defaults are used - both date and time are
- * present in the output.
- */
-DEFINE_METHOD(
-  GlobalDate.prototype,
-  toLocaleString() {
-    var locales = arguments[0];
-    var options = arguments[1];
-    return %ToLocaleDateTime(
-        this, locales, options, 'any', 'all', 'dateformatall');
-  }
-);
-
-
-/**
- * Formats a Date object (this) using locale and options values.
- * If locale or options are omitted, defaults are used - only date is present
- * in the output.
- */
-DEFINE_METHOD(
-  GlobalDate.prototype,
-  toLocaleDateString() {
-    var locales = arguments[0];
-    var options = arguments[1];
-    return %ToLocaleDateTime(
-        this, locales, options, 'date', 'date', 'dateformatdate');
-  }
-);
-
-
-/**
- * Formats a Date object (this) using locale and options values.
- * If locale or options are omitted, defaults are used - only time is present
- * in the output.
- */
-DEFINE_METHOD(
-  GlobalDate.prototype,
-  toLocaleTimeString() {
-    var locales = arguments[0];
-    var options = arguments[1];
-    return %ToLocaleDateTime(
-        this, locales, options, 'time', 'time', 'dateformattime');
-  }
-);
-
 })

src/objects/intl-objects.cc

@@ -569,6 +569,7 @@ MaybeHandle<JSObject> CachedOrNewService(Isolate* isolate,
       JSArray);
   return Handle<JSObject>::cast(result);
 }
+
 }  // namespace
 
 icu::Locale Intl::CreateICULocale(Isolate* isolate,

src/runtime/runtime-intl.cc

@@ -231,12 +231,10 @@ RUNTIME_FUNCTION(Runtime_CreateDateTimeFormat) {
 
 RUNTIME_FUNCTION(Runtime_FormatDate) {
   HandleScope scope(isolate);
-
   DCHECK_EQ(2, args.length());
 
   CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, date, 1);
-
   RETURN_RESULT_OR_FAILURE(
       isolate, DateFormat::DateTimeFormat(isolate, date_format_holder, date));
 }
@@ -487,24 +485,6 @@ RUNTIME_FUNCTION(Runtime_BreakIteratorBreakType) {
   }
 }
 
-RUNTIME_FUNCTION(Runtime_ToLocaleDateTime) {
-  HandleScope scope(isolate);
-
-  DCHECK_EQ(6, args.length());
-
-  CONVERT_ARG_HANDLE_CHECKED(Object, date, 0);
-  CONVERT_ARG_HANDLE_CHECKED(Object, locales, 1);
-  CONVERT_ARG_HANDLE_CHECKED(Object, options, 2);
-  CONVERT_ARG_HANDLE_CHECKED(String, required, 3);
-  CONVERT_ARG_HANDLE_CHECKED(String, defaults, 4);
-  CONVERT_ARG_HANDLE_CHECKED(String, service, 5);
-
-  RETURN_RESULT_OR_FAILURE(
-      isolate, DateFormat::ToLocaleDateTime(
-                   isolate, date, locales, options, required->ToCString().get(),
-                   defaults->ToCString().get(), service->ToCString().get()));
-}
-
 RUNTIME_FUNCTION(Runtime_ToDateTimeOptions) {
   HandleScope scope(isolate);
   DCHECK_EQ(args.length(), 3);

src/runtime/runtime.h

@@ -227,7 +227,6 @@ namespace internal {
   F(PluralRulesResolvedOptions, 1, 1)        \
   F(PluralRulesSelect, 2, 1)                 \
   F(ToDateTimeOptions, 3, 1)                 \
-  F(ToLocaleDateTime, 6, 1)                  \
   F(StringToLowerCaseIntl, 1, 1)             \
   F(StringToUpperCaseIntl, 1, 1)             \
   F(SupportedLocalesOf, 3, 1)                \