Again in the spirit of https://chromium-review.googlesource.com/1226033
we can simplify the handling of NumberDivide and decide the lowering
based on the feedback type.

Drive-by-fix: Add test coverage for the relevant corner cases of the
NumberDivide handling in SimplifiedLowering.

Bug: v8:8015
Change-Id: I0edaca0fddb31d64d2c269268e87a32a687a0b26
Reviewed-on: https://chromium-review.googlesource.com/1236262Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56113}