Handle an optimization escape hatch for the way $_, $!, $/ and %_ are handled.
Handle an optimization escape hatch for the way $_, $!, $/ and %_ are handled.

cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp