re-initialize frame maps for exception handlers on every iteration of the frame map calculation loop
re-initialize frame maps for exception handlers on every iteration of the frame map calculation loop

This fixes incorrect frame map calcuation which may lead to crashes
during garbage collection from an exception handler.

ucdseniordesign/avian,bgould/avian,joshuawarner32/avian,lwahlmeier/avian,bgould/avian,lostdj/avian,badlogic/avian,ucdseniordesign/avian,lwahlmeier/avian,minor-jason/avian,lwahlmeier/avian,dicej/avian,joshuawarner32/avian,bigfatbrowncat/avian-pack.avian,ucdseniordesign/avian,badlogic/avian,lwahlmeier/avian,lostdj/avian,getlantern/avian,minor-jason/avian,getlantern/avian,marcinolawski/avian,getlantern/avian,bgould/avian,dicej/avian,MaartenR/avian,dicej/avian,joshuawarner32/avian,badlogic/avian,MaartenR/avian,bigfatbrowncat/avian-pack.avian,MaartenR/avian,getlantern/avian,marcinolawski/avian,badlogic/avian,bigfatbrowncat/avian-pack.avian,ucdseniordesign/avian,marcinolawski/avian,lostdj/avian,bgould/avian,joshuawarner32/avian,bigfatbrowncat/avian-pack.avian,MaartenR/avian,marcinolawski/avian,minor-jason/avian,minor-jason/avian,dicej/avian,lostdj/avian