Add UseCounters for various standards-related code paths

src/i18n.cc

 // Copyright 2013 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.
 // limitations under the License.
 
 #include "src/i18n.h"
 
 #include "src/api.h"
 #include "src/factory.h"
 #include "src/isolate.h"
@@ skipping 127 matching lines @@
 
 void SetResolvedDateSettings(Isolate* isolate,
                              const icu::Locale& icu_locale,
                              icu::SimpleDateFormat* date_format,
                              Handle<JSObject> resolved) {
   Factory* factory = isolate->factory();
   UErrorCode status = U_ZERO_ERROR;
   icu::UnicodeString pattern;
   date_format->toPattern(pattern);
   JSObject::SetProperty(
-      resolved, factory->NewStringFromStaticChars("pattern"),
+      resolved, factory->intl_pattern_symbol(),
       factory->NewStringFromTwoByte(
                    Vector<const uint16_t>(
                        reinterpret_cast<const uint16_t*>(pattern.getBuffer()),
                        pattern.length())).ToHandleChecked(),
       SLOPPY).Assert();
 
   // Set time zone and calendar.
   const icu::Calendar* calendar = date_format->getCalendar();
   const char* calendar_name = calendar->getType();
   JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("calendar"),
@@ skipping 201 matching lines @@
 
 
 void SetResolvedNumberSettings(Isolate* isolate,
                                const icu::Locale& icu_locale,
                                icu::DecimalFormat* number_format,
                                Handle<JSObject> resolved) {
   Factory* factory = isolate->factory();
   icu::UnicodeString pattern;
   number_format->toPattern(pattern);
   JSObject::SetProperty(
-      resolved, factory->NewStringFromStaticChars("pattern"),
+      resolved, factory->intl_pattern_symbol(),
       factory->NewStringFromTwoByte(
                    Vector<const uint16_t>(
                        reinterpret_cast<const uint16_t*>(pattern.getBuffer()),
                        pattern.length())).ToHandleChecked(),
       SLOPPY).Assert();
 
   // Set resolved currency code in options.currency if not empty.
   icu::UnicodeString currency(number_format->getCurrency());
   if (!currency.isEmpty()) {
     JSObject::SetProperty(
@@ skipping 592 matching lines @@
 
 void BreakIterator::DeleteBreakIterator(
     const v8::WeakCallbackData<v8::Value, void>& data) {
   DeleteNativeObjectAt<icu::BreakIterator>(data, 0);
   DeleteNativeObjectAt<icu::UnicodeString>(data, 1);
   DestroyGlobalHandle(data);
 }
 
 }  // namespace internal
 }  // namespace v8