JIT: Enable containment for BMI2 shift and rotate instructions #111778
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Fixes #67314
Fixes #81522
This enables containment for the BMI2 shift and rotate instructions, and it enables those instructions on x86.
Diffs look good. There's a size regression on x86, since sarx/shlx/shrx are larger, but they are also much faster than the legacy instructions that take shift amount in
cl.