Regenerate tests 132 and 444

makes them fail again
Makes sure hash on a number always

returns an int. And checks if theres a bucket in a dict with the same
hash.
dict buckets can only ever have one item

tuple.tp$hash still assumed hash(nmber) returned a javascript number.
Adds a test
Merge remote-tracking branch 'origin/dict-hash-bucket-fix' into update-grammar-to-2.7.6