TypeNameParser.Escape() performance tweak by Marek Safar.

reflect/TypeNameParser.cs

@@ -122,18 +122,28 @@ namespace IKVM.Reflection
 			for (int pos = 0; pos < name.Length; pos++)
 			{
 				char c = name[pos];
-				if (SpecialChars.IndexOf(c) != -1)
+				switch (c)
 				{
+					case '\\':
+					case '+':
+					case ',':
+					case '[':
+					case ']':
+					case '*':
+					case '&':
 						if (sb == null)
 						{
 							sb = new StringBuilder(name, 0, pos, name.Length + 3);
 						}
-					sb.Append('\\').Append(c);
-				}
-				else if (sb != null)
+						sb.Append("\\").Append(c);
+						break;
+					default:
+						if (sb != null)
 						{
 							sb.Append(c);
 						}
+						break;
+				}
 			}
 			return sb != null ? sb.ToString() : name;
 		}