[M3commit] CVS Update: cm3

[Antony Hosking]

CVSROOT:	/usr/cvs
Changes by:	hosking at birch.	07/07/02 21:50:00

Modified files:
	cm3/m3-libs/m3core/src/runtime/common/: RTCollector.m3 

Log message:
	Fix bug in handling of weak references related to incremental GC.  We
	must make sure that, when the reference is LOOPHOLEd from its
	RefReferent (untraced) to REFANY (traced) form, it does not refer to a
	gray object.