Passing a char or number to ok! results in a compile error

[RomanEmreis]

The current ok! macro configuration doesn't allow the passing of the numbers or chars directly due to conflicting with the token tree arm.

let number_response = ok!(100); // compile error...
let char_response = ok!('a'); // compile error...

The workaround so far:

let n = 100;
let number_response = ok!(n);

let ch = 'a';
let char_response = ok!(ch);