Blacklist puzzle test for FromTasty
Blacklist puzzle test for FromTasty

When running puzzle from Tasty it still harmonizes the types
in the old way.

Here's the diff:
```
~/workspace/dotty/tests/run> diff puzzle.decompiled puzzle.decompiled.out
4,5c4,5
<     scala.Predef.println(if (false) 5.0 else 53.0)
<     val x: scala.Double = if (false) 5.0 else 53.0
---
>     scala.Predef.println(if (false) 5.0 else '5')
>     val x: scala.AnyVal = if (false) 5.0 else '5'
11c11
< }

```

lampepfl/dotty,dotty-staging/dotty,som-snytt/dotty,som-snytt/dotty,lampepfl/dotty,sjrd/dotty,dotty-staging/dotty,lampepfl/dotty,sjrd/dotty,som-snytt/dotty,sjrd/dotty,sjrd/dotty,lampepfl/dotty,som-snytt/dotty,dotty-staging/dotty,sjrd/dotty,dotty-staging/dotty,dotty-staging/dotty,som-snytt/dotty,lampepfl/dotty