Gen7 weavile can exist in gen4 as sneasel; existing code had pruned it
from gen4. Skip pruning for this case
probably overdid the checks but whatever. works.
Thanks /u/ThrowawayReddNinja for pointing out this false flagged case
with an example!
Correctly fixes#1163 (test cases added), eg wooper->quagsire would
learn yawn at 31 before evolving; the getmoves wouldn't provide yawn
(stopped at 30) with the old code; the lvl decrement was removed in the
incorrect commit, providing a legal verdict which was obtained
incorrectly (dexlevels were inaccurate)
