Reduce the amount of work done by some test cases, to make the suite easier to run.
Update the list of passing test cases.
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Change: 186030
ServerID: perforce.ravenbrook.com
1. Blacken the segments again after scanning the roots, so that the roots can be walked again.
2. Don't cast RootGrey to a RootIterateFn -- the types are not compatible.
MMQA test function/122.c now passes.
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Change: 185530
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$HopeName$ -> $Id$
space -> arena
mps_arena_create now takes three arguments
/usr/local/perl -> /usr/bin/perl -w
Missing #include <stdio.h> in several tests
Bogus closedir(DIR); in script/clib
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Change: 182199
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