A small optimization to improve the performance of jdk.internal.classfile.impl.Util#slotSize/isDoubleSlot
------------- Commit messages: - optimize slotSize & isDoubleSlot Changes: https://git.openjdk.org/jdk/pull/20747/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20747&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8339168 Stats: 11 lines in 1 file changed: 4 ins; 4 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/20747.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20747/head:pull/20747 PR: https://git.openjdk.org/jdk/pull/20747
