RFR: 8220449: serviceability/dcmd/compiler/CodelistTest.java failure

[Rahul Raghavan]

Hi,

Please review the following change based on the analysis
and fix proposal as contributed by Gary Adams.

<webrev> - http://cr.openjdk.java.net/~rraghavan/8220449/webrev.00/

<JBS> - https://bugs.openjdk.java.net/browse/JDK-8220449
'The test does attempt to disable BackgroundCompilation, but it 
apparently did not work as expected.'
Fix is to add -XX:-BackgroundCompilation to test to eager initialize JVMCI.


This case is similar to fix done in tests for JDK-8205400.
   8205400: '[Graal] DisassembleCodeBlobTest.java fails with can't be 
enqueued for compilation on level 4'
   # https://bugs.openjdk.java.net/browse/JDK-8205400
   # http://hg.openjdk.java.net/jdk/jdk/rev/ca4eea543d23


Thanks,
Rahul