[jdk21u-dev] RFR: 8330016: Stress seed should be initialized for runtime stub compilation [v2]

[Kirill Shirokov]

> A clean backport of commit [95d2f8](https://github.com/openjdk/jdk/commit/95d2f8072e91e8df80e49e341f4fdb4464a2616e).
> 
> Only touches the stress test-related code.
> 
> Motivation: ability to set StressSeed for C2 turns out to be quite instrumental in finding and especially reproducing rare C2 code generation bugs amplified by StressLCM and StressGCM flags, thus backporting it.
> 
> Tested by running jtreg tier1-4, gtest, jcstress on linux-aarch64.

Kirill Shirokov has updated the pull request incrementally with one additional commit since the last revision:

  Repair a cosmetic difference with the original fix (a dot in the end of a comment)

-------------

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/2581/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/2581/files/073ac3cd..f5e8057f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2581&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2581&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2581.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2581/head:pull/2581

PR: https://git.openjdk.org/jdk21u-dev/pull/2581