RFR(XS) : 8195729 : compiler.aot.AotCompiler should be run as a driver

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8195729/webrev.00
> 37 lines changed: 0 ins; 0 del; 37 mod; 

Hi all,

could you please review this small fix which replaces all execution of c.a.AotCompiler to driver mode execution?

this class spawns a new JVM to run jaotc tool, hence there is no need to run it by JVM under test and w/ external vm flags.

JBS: https://bugs.openjdk.java.net/browse/JDK-8195729
webrev: http://cr.openjdk.java.net/~iignatyev//8195729/webrev.00
testing: compiler/aot/ tests

Thanks,
-- Igor