RFR: 8297821: jdk/jshell/Test8294583.java fails on some platforms

[Aleksey Shipilev]

[JDK-8294583](https://bugs.openjdk.org/browse/JDK-8294583) added a new test that does `--enable-preview` to access new language constructs. Unfortunately, this test also enables Loom, which on some platforms like x86_32 uses the 1:1 fallback emulation, which does not support JVMTI. JShell apparently uses JDI -> JDWP -> JVMTI to work, and thus the test fails.

More logs in the bug.

Additional testing:
 - [x] Linux x86_64 fastdebug, test still passes
 - [x] Linux x86_32 fastdebug, test is now skipped

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Commit messages:
 - Fix

Changes: https://git.openjdk.org/jdk/pull/11428/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11428&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297821
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/11428.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11428/head:pull/11428

PR: https://git.openjdk.org/jdk/pull/11428