Newer PPR handles the postfix dereference in `PerlTerm` while
`PerlScalarAccess` handles indexing without any arrows.

This also addresses the issue of <shadow-dot-cat#3>.
This adds the tests from that PR (djerius++).

Co-authored-by: Diab Jerius <[email protected]>

For PostfixDeref that is interpolated in quote-likes.

Using `map` to translate the postfix subscripts does not work with
`push`, `pop`, `shift`, `unshift`, `splice`, and other built-ins that
modify the parameter as the `map` is using a copy.

This change makes the translation of
```perl
$foo->$*
```
into
```perl
${ $foo }
```
instead of
```perl
(map $$_, $foo)[0]
```

Fixes <shadow-dot-cat#13>.