RFR: 8266181: compiler/eliminateAutobox/TestEliminateBoxInDebugInfo should be in driver mode

[Igor Ignatyev]

On Wed, 28 Apr 2021 02:18:20 GMT, Igor Ignatyev <iignatyev at openjdk.org> wrote:

> Hi all,
> 
> could you please review this small patch that switches the execution mode of TestEliminateBoxInDebugInfo to driver mode and makes a few small cleanups?
> 
> from JBS:
>> TestEliminateBoxInDebugInfo creates a new JVM and verifies its output, hence it doesn't have to be run in the JDK in test configuration and can be run in driver mode.
> 
> Thanks,
> -- Igor

I realized that a) I should have used `OutputAnalyzer::stdoutShouldMatch`; b) there is no need to use a regexp here; c) we don't check the exit code. the latest patch addresses this.

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PR: https://git.openjdk.java.net/jdk/pull/3746