RFR: 8342962: [s390x] TestOSRLotsOfLocals.java crashes [v2]

[Amit Kumar]

> We are on thin ice with the `TestOSRLotsOfLocals` test. Before it breaks, I'd like to provide the fix. :-)
> 
> Testing : Tier1 test with fastdebug vm.

Amit Kumar has updated the pull request incrementally with one additional commit since the last revision:

  comments from Lutz

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/21703/files
  - new: https://git.openjdk.org/jdk/pull/21703/files/f230ffa3..084fac86

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21703&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21703&range=00-01

  Stats: 5 lines in 1 file changed: 0 ins; 3 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/21703.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21703/head:pull/21703

PR: https://git.openjdk.org/jdk/pull/21703