[8u] RFA+RFR (S) 8214189: test/hotspot/jtreg/compiler/intrinsics/mathexact/MulExactLConstantTest.java fails on Windows x64 when run with -XX:-TieredCompilation

[Roland Westrelin]

Thanks for taking of that one. I missed when I backported related patches.

> Patch does not apply to 8u cleanly and needs manual merge. It seems 8u code has "unsigned int"
> instead of "unsigned long" in modified locations. New test does not fail with unfixed 8u, so I
> wonder if this patch is needed in 8u, Roland?

It seems you applied the patch to the wrong method: MulINode::Ideal()
instead of MulLNode::Ideal()

Roland.