Fix missing increment after parsing dotted funcname

Parser.cs

@@ -1424,6 +1424,7 @@ class Parser
 				throw new Exception($"{tokens[index].region}: Expected name in dotted funcname starting at {startRegion}, got {tokens[index].type}");
 			}
 			dottedNames.Add(((Token.StringData)tokens[index].data!).data);
+			index += 1;
 		}
 		if(index < tokens.Length && tokens[index].type == TokenType.Colon)
 		{