RFR: 8349142: [JMH] compiler.MergeLoadBench.getCharBV fails [v2]

[SendaoYan]

> Hi all,
> 
> There are two JMH tests fails after [JDK-8344168](https://bugs.openjdk.org/browse/JDK-8344168) merged. This PR fix the JMH tests fails similar to https://github.com/oracle/graal/pull/10602, just remove the unnecessary Unsafe.ARRAY_BYTE_BASE_OFFSET at the second argument of VarHandle.get.
> Change has been verified locally, test-fix only, no risk.

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

  remove Unsafe.ARRAY_BYTE_BASE_OFFSET from second argument of VarHandle.get

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23393/files
  - new: https://git.openjdk.org/jdk/pull/23393/files/07c67cc4..74c7a386

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23393&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23393&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23393.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23393/head:pull/23393

PR: https://git.openjdk.org/jdk/pull/23393