Lint same equals, e.g (equal? foo foo)

[jestarray]

--------------------
#lang racket
(define foo 1)
(define bar 2)
(equal? foo foo) ; user probably meant to check foo against bar
--------------------
#lang racket
; idk what it should generate? It should warn the user that the comparison of the same thing is pointless

As mentioned here:
jeapostrophe/racket-langserver#152 (comment)

[jackfirth]

I think I want to use this lint as an opportunity to give Resyntax the ability to express rules that just point out bugs without offering suggested fixes. This seems like a case where there's no good way to automatically figure out what the user intended to write instead.