Upgrading Tape to 5.x results in these tests failing

Have not investigated further, just raising for visibility to remember.

When attempting to upgrade Tape to latest major version, every tests passes but these

```
test('hasAlg fantasy-land', t => {
const keys = Object.keys(fl)

t.plan(keys.length * 2)

keys.forEach(k => {
const inst = { [fl[k]]: identity }
const noFunc = { [fl[k]]: true }

t.ok(hasAlg(k, inst, `returns true for ${k}, when ${fl[k]} is a function`))
t.notOk(hasAlg(k, noFunc, `returns false for ${k}, when ${fl[k]} is not a function`))
})
})
```