webrev to toggle HSAIL deoptimization

[Caspole, Eric]

Hi everybody,
I put up a new webrev to allow to disable the HSAIL deoptimization support by using -XX:-UseHSAILDeoptimization, which is true/on by default.

 http://cr.openjdk.java.net/~ecaspole/toggle_hsail_deopt/webrev/

Disabling the HSAIL deoptimization will allow code compiled by Graal run using the okra java launch path to continue to work when they use -XX:-UseHSAILDeoptimization. Since they are launched on a path using JNI it is not compatible with the HSAIL deoptimization. In particular Clumatra will require this flag to work correctly now that the deoptimization is committed.
Thanks,
Eric