:LOAD-TOPLEVEL context; this appears to decrease fasl sizes by
approximately 10%.
* fixed some bugs revealed by Paul Dietz' test suite:
+ ** Fixed an optimization bug related to inheritance of initforms
+ from local to shared slots.
** FILE-POSITION works as specified on BROADCAST-STREAMs.
** CAST optimizer forgot to flush argument derived type.
** print/read consistency on floats is now orders of magnitude