RFR(XS) : 8195724 compiler.calls.common.InvokeDynamicPatcher can be run as driver

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev/8195724/webrev.00/
> 12 lines changed: 0 ins; 0 del; 12 mod;

Hi all,

could you please review this small fix for compiler(/aot)/calls tests? this patch changes execution mode of c.c.c.InvokeDynamicPatcher aux class to 'driver', so jtreg won't use external vm flags and will be able to share agent JVM for execution.

webrev: http://cr.openjdk.java.net/~iignatyev/8195724/webrev.00/
JBS: https://bugs.openjdk.java.net/browse/JDK-8195724
testing: compiler/calls and compiler/aot/calls 

Thanks,
-- Igor