* Restricts permutative conversions for case-expressions to
non-booleans. This reduces the blow-up a bit.
Permutative conversions rewrite
```
case (case M | C1 -> A1 | C2 -> A2)
| D1 -> B1
| D2 -> B2
```
to
```
case M
| C1 -> case A1
| D1 -> B1
| D2 -> B2
| C2 -> case A2
| D1 -> B1
| D2 -> B2
```
It is necessary to perform them for non-boolean A1/A2 to obtain the
right kind of normal forms.
* Adds a test demonstrating the necessity of permutative conversions for
non-booleans.
* Closes#2134
Adds the `argnames` pragma which specifies function argument names.
These will be the names used in Core and subsequently in VampIR for the
`main` function.
```
{-# argnames: [x, y] -#}
main : Nat -> Nat -> Nat;
```
* Closes#2035
* Depends on #2086
* Depends on #2096
* Adds end-to-end tests for the Juvix-to-VampIR compilation pipeline.
---------
Co-authored-by: Jonathan Cubides <jonathan.cubides@uib.no>
