8367341: C2: apply KnownBits and unsigned bounds to And / Or operations

[merykitty]

Hi,

This PR improves the implementation of AndNode/OrNode/XorNode::Value by taking advantages of the additional information in TypeInt. The implementation is pretty straightforward. A clever trick is that by analyzing the negative and positive ranges of a TypeInt separately, we have better info for the leading bits. I also implement gtest unit tests to verify the correctness and monotonicity of the inference functions.

Please take a look and leave your reviews, thanks a lot.

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Issue

• JDK-8367341: C2: apply KnownBits and unsigned bounds to And / Or operations (Enhancement - P4)

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