Fpc accepts integer as first entries in a set of char.
Fpc allows this program to compile:
```pascal
program test;
{$mode objfpc} //$mode does not matter
{$H+}
const
Chars1: set of char = [255, 254, 253, #0, #1];
Chars2 = [98, '('];
//Chars3 = ['a',98]; not allowed (as expected): Error: Incompatible types: got "ShortInt" expected "Char"
var
Ch: Char;
begin
if Ch in [$FF, 'A'..'Z'] then;
end.
```
Delphi (7) gives the expected errormessage: Error: Incompatible types: 'Integer' and 'Char'
First reported on [the forum](https://forum.lazarus.freepascal.org/index.php/topic,66161.0.html) by user Avinash.
issue