[browser][non-icu] HybridGlobalization locales covering LocaleStringData.

docs/design/features/globalization-hybrid-mode.md

@@ -272,6 +272,70 @@ Using `IgnoreNonSpace` for these two with `HybridGlobalization` off, also return
 new CultureInfo("de-DE").CompareInfo.IndexOf("strasse", "stra\u00DFe", 0, CompareOptions.IgnoreNonSpace); // 0 or -1
 ```
 
+**CultureInfo**
+
+Affected public APIs:
+- DisplayName
+- EnglishName
+- NativeName
+
+DisplayName, EnglishName and NativeName use []`Intl.DisplayNames`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DisplayNames) with `{type: "language"}`, so some values can slightly differ, see on the example of `NativeName` (`DisplayName` and `EnglishName` differ accordingly):
+
+| **locale** |           **Non-Hybrid**          |               **Hybrid**              |
+|:----------:|:---------------------------------:|:-------------------------------------:|
+|  **de-AT** |        Deutsch (Österreich)       |        Österreichisches Deutsch       |
+|  **de-CH** |         Deutsch (Schweiz)         |         Schweizer Hochdeutsch         |
+|  **en-AU** |        English (Australia)        |           Australian English          |
+|  **en-CA** |         Australian English        |            Canadian English           |
+| **en-GB**  | English (United Kingdom)          | British English                       |
+| **en-VC**  | English (St Vincent & Grenadines) | English (St Vincent & the Grenadines) |
+| **en-US**  | English (United States)           | American English                      |
+| **es-419** | español (Latinoamérica)           | español latinoamericano               |
+| **es-ES**  | español (España)                  | español de España                     |
+| **es-MX**  | español (México)                  | español de México                     |
+| **fr-CA**  | français (Canada)                 | français canadien                     |
+| **fr-CH**  | français (Suisse)                 | français suisse                       |
+| **nl-BE**  | Nederlands (België)               | Vlaams                                |
+| **pt-PT**  | português (Portugal)              | português europeu                     |
+| **zh-SG**  | 中文（简体，中国香港特别行政区）     | 简体中文（中国香港特别行政区）          |
+
+
+**NumberFormatInfo**
+CurrencyDecimalDigits (Int: ToDo in the follow-up PR)
+- CurrencyDecimalSeparator
+- CurrencyGroupSeparator
+CurrencyGroupSizes (Int[]: ToDo in the follow-up PR)
+CurrencyNegativePattern (Int: ToDo in the follow-up PR)
+CurrencyPositivePattern (Int: ToDo in the follow-up PR)
+- CurrencySymbol
+- NaNSymbol
+- NativeDigits
+NegativeInfinitySymbol (Calendars: ToDo in the follow-up PR)
+- NegativeSign
+NumberDecimalDigits (Int: ToDo in the follow-up PR)
+- NumberDecimalSeparator
+- NumberGroupSeparator
+NumberGroupSizes (Int[]: ToDo in the follow-up PR)
+NumberNegativePattern (Int: ToDo in the follow-up PR)
+PercentDecimalDigits (Int: ToDo in the follow-up PR)
+- PercentDecimalSeparator
+- PercentGroupSeparator
+PercentGroupSizes (Int[]: ToDo in the follow-up PR)
+PercentNegativePattern (Int: ToDo in the follow-up PR)
+PercentPositivePattern (Int: ToDo in the follow-up PR)
+- PercentSymbol
+- PerMilleSymbol
+PositiveInfinitySymbol (Calendars: ToDo in the follow-up PR)
+- PositiveSign
+
+`CurrencySymbol` uses [`toLocaleString`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString) with `{ style: "currency" }` that restuls in following differences:
+| **locale** |           **Non-Hybrid**          |               **Hybrid**              |
+|:----------:|:---------------------------------:|:-------------------------------------:|
+|  **en-SL** |                 Le                |                  SLL                  |
+|  **hr-HR** |                 HRK               |                  kn                   |
+
+**TextInfo**
+IsRightToLeft (Int: ToDo in the following PR)
 
 ### OSX
 

src/libraries/Common/src/Interop/Browser/Interop.Locale.cs

@@ -0,0 +1,31 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Runtime.CompilerServices;
+
+internal static partial class Interop
+{
+    internal static unsafe partial class JsGlobalization
+    {
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetMonetarySymbol(in string culture, in string isoSymbol, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetMonetaryDecimalSeparator(in string culture, in string isoSymbol, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetDecimalSeparator(in string culture, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetMonetaryThousandSeparator(in string culture, in string isoSymbol, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetThousandSeparator(in string culture, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetDigits(in string culture, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGeCurrencyName(in string culture, in string isoSymbol, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetCountryName(in string culture, in string region, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetLanguageName(in string culture, in string region, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+        [MethodImplAttribute(MethodImplOptions.InternalCall)]
+        internal static extern unsafe int JsGetDisplayName(in string culture, in string displayCulture, char* buffer, int bufferLength, out int exceptionalResult, out object result);
+    }
+}

src/libraries/System.Globalization/tests/CultureInfo/CultureInfoEnglishName.cs

@@ -21,6 +21,15 @@ public static IEnumerable<object[]> EnglishName_TestData()
                 yield return new object[] { "fr-FR", "French (France)" };
                 yield return new object[] { "uz-Cyrl", "Uzbek (Cyrillic)" };
             }
+            else if (PlatformDetection.IsHybridGlobalizationOnBrowser)
+            {
+                yield return new object[] { "bn-BD", "Bangla (Bangladesh)" };
+                yield return new object[] { "en-CC", "English (Cocos [Keeling] Islands)" };
+                yield return new object[] { "en-MP", "English (Northern Mariana Islands)" };
+                yield return new object[] { "en-US", "American English" };
+                yield return new object[] { "fr-FR", "French (France)" };
+                yield return new object[] { "hr-BA", "Croatian (Bosnia & Herzegovina)" };
+            }
             else
             {
                 // Mobile / Browser ICU doesn't contain CultureInfo.EnglishName

src/libraries/System.Globalization/tests/CultureInfo/CultureInfoNativeName.cs

@@ -18,6 +18,21 @@ public static IEnumerable<object[]> NativeName_TestData()
                 yield return new object[] { "en-US", "English (United States)" };
                 yield return new object[] { "en-CA", "English (Canada)" };
             }
+            else if (PlatformDetection.IsHybridGlobalizationOnBrowser)
+            {
+                yield return new object[] { "ar-SA", "\u0627\u0644\u0639\u0631\u0628\u064a\u0629\u0020\u0028\u0627\u0644\u0645\u0645\u0644\u0643\u0629\u0020\u0627\u0644\u0639\u0631\u0628\u064a\u0629\u0020\u0627\u0644\u0633\u0639\u0648\u062f\u064a\u0629\u0029" };
+                yield return new object[] { "de-BE", "Deutsch (Belgien)" };
+                yield return new object[] { "de-DE", "Deutsch (Deutschland)" };
+                yield return new object[] { "en-CA", "Canadian English" };
+                yield return new object[] { "en-US", "American English" };
+                yield return new object[] { "nb-NO", "norsk bokm\u00e5l (Norge)" };
+                yield return new object[] { "no", "norsk" };
+                yield return new object[] { "no-NO", "norsk (Norge)" };
+                yield return new object[] { "sr-Cyrl-RS", "\u0441\u0440\u043f\u0441\u043a\u0438\u0020\u0028\u045b\u0438\u0440\u0438\u043b\u0438\u0446\u0430\u002c\u0020\u0421\u0440\u0431\u0438\u0458\u0430\u0029" };
+                yield return new object[] { "sr-Latn-RS", "srpski (latinica, Srbija)" };
+                yield return new object[] { "sw-CD", "Kiswahili (Jamhuri ya Kidemokrasia ya Kongo)" };
+                yield return new object[] { "zh-TW", "\u4e2d\u6587\uff08\u53f0\u7063\uff09" };
+            }
             else
             {
                 // Mobile / Browser ICU doesn't contain CultureInfo.NativeName