gdb/gdb-6.8-breakpoint-gone.patch

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A part of:
http://sourceware.org/ml/gdb-cvs/2008-06/msg00160.html
It was crashing the RH testcase `gdb.threads/watchthreads2.exp'.
diff -up -u -X /root/jkratoch/.diffi.list -rup gdb-6.8/gdb/breakpoint.c gdb-6.8-patched/gdb/breakpoint.c
--- gdb-6.8/gdb/breakpoint.c 2008-08-28 11:56:56.000000000 +0200
+++ gdb-6.8-patched/gdb/breakpoint.c 2008-08-28 11:53:43.000000000 +0200
@@ -3173,6 +3173,9 @@ bpstat_what (bpstat bs)
/* I suspect this can happen if it was a momentary breakpoint
which has since been deleted. */
continue;
+ if (bs->breakpoint_at->owner == NULL)
+ bs_class = bp_nostop;
+ else
switch (bs->breakpoint_at->owner->type)
{
case bp_none: