Revert "[turbofan] Improve NumberMultiply typing rule."
This reverts commit 585b4eef. Reason for revert: Speculative, crbug 906567. Original change's description: > [turbofan] Improve NumberMultiply typing rule. > > The NumberMultiply typing rule gave up in the presence of NaN inputs, > but we can still infer useful ranges here and just union the result > of that with the NaN propagation (similar for MinusZero propagation). > This way we can still makes sense of these ranges at the uses. > > Bug: v8:8015 > Change-Id: Ic4c5e8edc6c68776ff3baca9628ad7de0f8e2a92 > Reviewed-on: https://chromium-review.googlesource.com/c/1261143 > Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> > Reviewed-by: Sigurd Schneider <sigurds@chromium.org> > Cr-Commit-Position: refs/heads/master@{#56539} TBR=sigurds@chromium.org,bmeurer@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:8015 Change-Id: I3c652bafbbc0e5d1ad4ff288264fd4f4cbf71330 Reviewed-on: https://chromium-review.googlesource.com/c/1340253Reviewed-by: Georg Neis <neis@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#57602}
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