[project @ 1999-02-05 14:49:22 by simonm]

[ repeating commit, message got lost last time ]

  - Scavenge each older generation immediately after traversing its
    mutable list.

  - Make the first GC a major one: it doesn't cost much, and we get
    to garbage collection 'main' straight away.

  - Change the order of scavenging to try to minimise the size of
    the mutable lists.