The unit tests for de-json:html and en-json:html in zuse.hoon were
copied from the JSON Test Suite (https://github.com/nst/JSONTestSuite).
While a good test suite if usable as-is, it has a lot of problems with
it, namely: inconsistent test names; repeated tests; and mixing tests
for multiple cases into one file. Since the tests need to be manually
added to Urbit anyway, this commit uses the opportunity to clean up the
test suite by making the following changes:
- Renaming tests to use a consistent naming scheme
- Removing repetetive test cases
- Splitting multi-case tests into multiple single-purpose tests
Including these in pkg/arvo has caused many minor problems over the
years. We don't want to include them in releases, but this often meant
excluding them manually, which was error-prone.
Here, we move them out of /pkg/arvo/tests and into /tests. CI will have
to be updated to match, since we'll still want to include tests there.
