Adjust C# compilation

Author: Danielku15

src.compiler/csharp/CSharpAstTransformer.ts

@@ -2966,11 +2966,10 @@ export default class CSharpAstTransformer {
                         return 'TrimStart';
                 }
                 break;
-            case 'NumberConstructor':
             case 'Number':
                 switch (symbol.name) {
                     case 'toString':
-                        return 'toInvariantString';
+                        return 'ToInvariantString';
                 }
                 break;
         }

src.csharp/AlphaTab/Core/TypeHelper.cs

@@ -266,7 +266,7 @@ public static KeyValuePair<TKey, TValue> CreateMapEntry<TKey, TValue>(TKey key,
             return new KeyValuePair<TKey, TValue>(key, value);
         }
 
-        public static string ToString(this double num, int radix)
+        public static string ToInvariantString(this double num, int radix)
         {
             if (radix == 16)
             {
@@ -276,6 +276,21 @@ public static string ToString(this double num, int radix)
             return num.ToString(CultureInfo.InvariantCulture);
         }
 
+        public static string ToInvariantString(this double num)
+        {
+            return num.ToString(CultureInfo.InvariantCulture);
+        }
+
+        public static string ToInvariantString(this int num)
+        {
+            return num.ToString(CultureInfo.InvariantCulture);
+        }
+
+        public static string ToInvariantString(this Enum num)
+        {
+            return ((IConvertible)num).ToInt32(CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture);
+        }
+
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static RegExp CreateRegex(string pattern, string flags)
         {