Import intl test suite from v8-i18n project

test/intl/general/mapped-locale.js

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-#ifndef V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
-#define V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
+// Make sure that zh locales map properly, i.e. don't map zh-TW to zh.
 
-#include "v8.h"
+var nf = Intl.NumberFormat(['zh-TW'], {localeMatcher: 'lookup'});
+assertEquals('zh-TW', nf.resolvedOptions().locale);
 
-namespace v8_i18n {
+var nf = Intl.NumberFormat(['zh-Hant-TW'], {localeMatcher: 'lookup'});
+assertEquals('zh-Hant-TW', nf.resolvedOptions().locale);
 
-class Extension : public v8::Extension {
- public:
-  Extension();
+var nf = Intl.NumberFormat(['zh-Hant'], {localeMatcher: 'lookup'});
+assertEquals('zh-Hant', nf.resolvedOptions().locale);
 
-  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
-      v8::Handle<v8::String> name);
+nf = Intl.NumberFormat(['zh'], {localeMatcher: 'lookup'});
+assertEquals('zh', nf.resolvedOptions().locale);
 
-  static void Register();
+nf = Intl.NumberFormat(['zh-CN'], {localeMatcher: 'lookup'});
+assertEquals('zh-CN', nf.resolvedOptions().locale);
 
- private:
-  static Extension* extension_;
-};
+nf = Intl.NumberFormat(['zh-Hans-CN'], {localeMatcher: 'lookup'});
+assertEquals('zh-Hans-CN', nf.resolvedOptions().locale);
 
-}  // namespace v8_i18n
+nf = Intl.NumberFormat(['zh-Hans'], {localeMatcher: 'lookup'});
+assertEquals('zh-Hans', nf.resolvedOptions().locale);
 
-#endif  // V8_EXTENSIONS_I18N_I18N_EXTENSION_H_
+nf = Intl.NumberFormat(['en-US'], {localeMatcher: 'lookup'});
+assertEquals('en-US', nf.resolvedOptions().locale);