[jdk21u-dev] RFR: 8309203: C2: remove copy-by-value of GrowableArray for InterfaceSet

[Aleksey Shipilev]

Transplanted from https://github.com/openjdk/jdk21u/pull/423

Clean backport to amend JDK 21 change, dodge the potential copy-by-value issues, and sync up codebases.

Maybe @rwestrel would bless it.

Additional testing:
 - [x] MacOS AArch64 server fastdebug, `hotspot:tier1`
 - [x] Linux x86_64 server fastdebug `tier{1,2,3}`
 - [x] Linux AArch64 server fastdebug `tier{1,2,3}`

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Commit messages:
 - Backport 21cda19d05b688148f023f6d92778b5da210b709

Changes: https://git.openjdk.org/jdk21u-dev/pull/11/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=11&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8309203
  Stats: 286 lines in 2 files changed: 66 ins; 44 del; 176 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/11.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/11/head:pull/11

PR: https://git.openjdk.org/jdk21u-dev/pull/11