Fix deopt_all under JIT compilation.

This records the JIT labels that map to each deopt all index, so we
can turn a jit_entry_label into a deopt index at the time we need to
deopt all. Fixes the crash in the NQP build under the JIT due to the
named parameter QAST construction mixing in and triggering deopt_all.
This is Fisher Price My First JIT Patch (TM); review suggested.