Merge pull request #2778 from tmat/UICulture

Fixes CultureInfo light-up code

src/Compilers/Core/Portable/CorLightup.cs

@@ -18,7 +18,7 @@ internal static class Desktop
         {
             private static class CultureInfo
             {
-                internal static readonly Type Type = typeof(CultureInfo);
+                internal static readonly Type Type = typeof(System.Globalization.CultureInfo);
 
                 internal static readonly PropertyInfo CultureTypes = Type
                     .GetTypeInfo()