Assert an expression is Ready and its value is equal to an expression.
Pseudocode:
(a ⇒ Ready(a1) ⇒ a1) = b
§Example
use assertables::*;
use std::task::Poll;
use std::task::Poll::*;
let a: Poll<i8> = Ready(1);
let b: i8 = 1;
assert_ready_eq_x!(a, b);
§Module macros