fixed FormatException and possibly thrown NotSupportedException in Token

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/vbnet@5863 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Libraries/NRefactory/Project/Src/Lexer/Token.cs

@@ -91,11 +91,22 @@ namespace ICSharpCode.NRefactory.Parser
 		
 		public override string ToString()
 		{
-			return string.Format("[C# {0}/VB {1} Location={3} EndLocation={4} val={5}]",
-			                     CSharp.Tokens.GetTokenString(kind),
-			                     VB.Tokens.GetTokenString(kind),
-			                     Location, EndLocation, val);
+			string csharpToken, vbToken;
 			
+			try {
+				csharpToken = CSharp.Tokens.GetTokenString(kind);
+			} catch (NotSupportedException) {
+				csharpToken = "<unknown>";
+			}
+			
+			try {
+				vbToken = VB.Tokens.GetTokenString(kind);
+			} catch (NotSupportedException) {
+				vbToken = "<unknown>";
+			}
+			
+			return string.Format("[C# {0}/VB {1} Location={2} EndLocation={3} val={4}]",
+			                     csharpToken, vbToken, Location, EndLocation, val);
 		}
 	}
 }