RFR: 8163105: SIGSEGV: constantPoolHandle::constantPoolHandle(ConstantPool*)

[Doug Simon]

Please review this change which fixes a test bug. The bug was probably caused by the API for CompilerToVM.getConstantPool being more general (and thus complicated) than it needs to be. The webrev simplifies the API and also the test.

-Doug

https://bugs.openjdk.java.net/browse/JDK-8163105
http://cr.openjdk.java.net/~dnsimon/8163105/