We can reduce overhead of first use of a switch bootstrap by moving `typePairToName` into `TypePairs` and by explicitly overriding `hashCode` and `equals`. The first change avoids loading and initializing the `TypePairs` class in actual cases, the second remove some excess code generation from happening on first use.
------------- Commit messages: - Move typePairToName to TypePairs to make this lazy loaded - Explicit hashCode and equals for SwitchBootstraps Changes: https://git.openjdk.org/jdk/pull/18865/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18865&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8330681 Stats: 18 lines in 1 file changed: 14 ins; 3 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/18865.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18865/head:pull/18865 PR: https://git.openjdk.org/jdk/pull/18865
