mixphix

There's only two things stopping `master` from compiling with 0.5.1, the last released version of the language; one which a package manager for that language should generally support. - pclose...

Feature request: `traverseKeys` and `traverseKeysWith`

6

Currently there are functions ```haskell mapKeys :: (Ord k) => (j -> k) -> Map j a -> Map k a traverse :: (Applicative f) => (a -> f b)...

Mis-scope of let-binding declarations immediately followed by signatures

2

The first local signature (for `x :: ()`) in the image below should have the same scope as the signature for `y` below it: 

Fixes #230. Infix operators can include `#` characters even when `MagicHash` is not enabled.

Export `Data.Traversable.for` from the Prelude

3

[Merge request](https://gitlab.haskell.org/ghc/ghc/-/merge_requests/12113) I did not test `clc-stackage` as there are many packages with version bounds in both the current cabal file and the latest Stackage Nightly release that do not...