RFR: 8295294: Misc cleanups in runtime/InvocationTests

Thu Oct 13 20:48:55 UTC 2022

Address the following problems in runtime/InvocationTests:
  - Test case tracing output is omitted;
  - Stand-alone test case executors are broken.

Testing: manual

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

Commit messages:
 - fix output in --noexecute mode
 - 8295294: Misc cleanups in runtime/InvocationTests

Changes: https://git.openjdk.org/jdk/pull/10701/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10701&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295294
  Stats: 42 lines in 2 files changed: 10 ins; 16 del; 16 mod
  Patch: https://git.openjdk.org/jdk/pull/10701.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10701/head:pull/10701

PR: https://git.openjdk.org/jdk/pull/10701