The test suite now runs on tasty + tasty-quickcheck. Translation is
mechanical: `property`/`forAll`/`lift` become
`monadicIO`/`pick`/`run`, `success`/`fail` become `pure ()`/`stop`
with a counterexample, and Hedgehog's ranged generators are replaced
by a `linear` helper that scales with QuickCheck's size parameter.
Shrinking is dropped since QuickCheck can't shrink these while keeping
the generated text within the ranges the assertions assume.
The expected-value patterns were also stale relative to the IR
(`LI`'s `child` field is gone, blocks carry a trailing `Attrs`, list
types carry a `style`), so they've been updated to match. The
structural checks are otherwise unchanged.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
