PIC/JIT - verfiy, if sub is JITtable 3
PIC/JIT - verfiy, if sub is JITtable 3

* add sanity checks
  - check if all opcodes are JITtable
  - verify, that if the sub calls a sub, it's recursive
  - verify that all JITtable opcode only are I or N regs
* remove explicit test for the sub name __pic_test  



git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@11487 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot