Previously, all kind arguments were being reified, which would cause
something like this:

```
type Id a = a
data Proxy (a :: Id k) = Proxy
```

to output

```
data Proxy (a :: Id * k) = Proxy
```

when `Proxy`'s `Info` is reified. The fix is simple: simply call
`filterOutInvisibleTypes` on the kind arguments of a kind synonym
application.

Fixes #11463.

Test Plan: ./validate

Reviewers: austin, bgamari, goldfire

Reviewed By: goldfire

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D2081

GHC Trac Issues: #11463