HSAIL: removed debug output
mx: converted class path variables to camel case for better readability
mx: remove entries from unittest class path that are in graal.jar when running with a Graal enabled VM
added support to load classes from graal.jar with a separate class loader
made -esa apply to Graal classes even if they are not loaded by the boot class loader
removed use of SecurityManager and hiding fields from reflection (made redundant by -XX:+UseGraalClassLoader option)