RFR: 8308969: make test-prebuilt doesn't return the correct exit code [v2]

[Antonios Printezis]

> For 'make' test and 'make test-only' the existence of exit-with-error is checked in the main target in Init.gmk. Is there a better way to fix this than to check for the existence of exit-with-error in RunTestsPrebuilt.gmk?

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

  changes based on code review feedback

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/14183/files
  - new: https://git.openjdk.org/jdk/pull/14183/files/224a9e3b..07b0354e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14183&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14183&range=00-01

  Stats: 8 lines in 2 files changed: 8 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/14183.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14183/head:pull/14183

PR: https://git.openjdk.org/jdk/pull/14183