RFR: 8319933: Disable tests for JDK-8280481 on Graal

[Doug Simon]

This test should be ignored when Graal is selected as the JIT until such time that Graal implements the same optimization.

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Commit messages:
 - disable SharedStubToInterpTest when Graal is JIT

Changes: https://git.openjdk.org/jdk/pull/19672/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19672&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319933
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19672.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19672/head:pull/19672

PR: https://git.openjdk.org/jdk/pull/19672