openj9
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Implement LastITable for Z platform
Z jit code does not check the LastITable when an interface is called. This PR implements the Last I Table cache for Z platform.
Related changes on x86: https://github.com/eclipse-openj9/openj9/pull/21939
@r30shah thanks for review, when you have time, could you please take another look?
Started sanity tests.
jenkins test sanity zlinux jdk8,jdk17,jdk21
All tests passed. Merging changes.