[lworld] RFR: 8361082: [lworld] RewriteBytecodesInlineTest fails with SIGSEGV

Wed Jul 2 16:50:05 UTC 2025

`RewriteBytecodesInlineTest` fails after # due to a new log message printing the pending exception name even though there may not be a pending exception:
`PENDING_EXCEPTION->klass()->name()->as_C_string()`

This patch refactors the loadable descriptor handling used in `SystemDictionary::load_shared_class` to better illustrate how the loadable descriptors property is handled and it corrects the log messages to be consistent with the messages used in the class file parser. Verified with tier 1-5 tests.

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Commit messages:
 - Added more spacing
 - 8361082: [lworld] RewriteBytecodesInlineTest fails with SIGSEGV

Changes: https://git.openjdk.org/valhalla/pull/1498/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1498&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8361082
  Stats: 112 lines in 3 files changed: 78 ins; 30 del; 4 mod
  Patch: https://git.openjdk.org/valhalla/pull/1498.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1498/head:pull/1498

PR: https://git.openjdk.org/valhalla/pull/1498