RFR 8152343: JVMCI test tasks: Unit tests for MetaAccessProvider

[Dmitrij Pochepko]

Hi,

please review patch for 8152343: JVMCI test tasks: Unit tests for 
MetaAccessProvider

A new tests were added for jdk.vm.ci.meta.MetaAccessProvider 
implementation. An existing TestMetaAccessProvider.java was used to add 
new tests.

webrev: http://cr.openjdk.java.net/~dpochepk/8152343/webrev.01/

CR: https://bugs.openjdk.java.net/browse/JDK-8152343

I've tested it on linux_x64.

Thanks,
Dmitrij