assert!(a == b, ...) to assert_eq!(a, b, ...)

[ticki]

A warn-lint which detects equality assertions using assert! instead of assert_eq!. Generally, this is considered an anti-pattern.

[mcarton]

I'd rather wait: there is some discussion about improving assert! itself (see rust-lang/rfcs#1662 and rust-lang/rfcs#1653).
Also note that currently assert_eq! requires its parameters to implement Debug, while assert!(a == b) does not.

[birkenfeld]

Dupe of #641.