[jdk17u-dev] RFR: 8177107: Reduce memory footprint of java.lang.reflect.Constructor/Method

[Aleksey Shipilev]

Clean backport to improve memory footprint in reflection-heavy applications.

Additional testing:
 - [x] Linux AArch64 server fastdebug, `java/lang/reflect`
 - [ ]  Linux AArch64 server fastdebug, `all`

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Commit messages:
 - Backport a385142398eee102ff1a53d848230dc95c4ebd37

Changes: https://git.openjdk.org/jdk17u-dev/pull/2486/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2486&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8177107
  Stats: 22 lines in 4 files changed: 14 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2486.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2486/head:pull/2486

PR: https://git.openjdk.org/jdk17u-dev/pull/2486