Never return filler objects from search_immobile_space().
commit303980f69be472255d31e9edb81234b0cf719526
authorDouglas Katzman <dougk@google.com>
Mon, 6 Feb 2017 06:12:54 +0000 (6 01:12 -0500)
committerDouglas Katzman <dougk@google.com>
Mon, 6 Feb 2017 06:12:54 +0000 (6 01:12 -0500)
tree3ee4a5c879e8a445ec73813f7b0b9e249de8d1b1
parentda25537520367f5de772bce10c553c77770af801
Never return filler objects from search_immobile_space().

Also have Lisp code use same criteria as C for detecting filler.
src/code/room.lisp
src/runtime/marknsweepgc.c