evolve: create resolved cset on successors of current parents
While resolving content-divergence, sometimes, the parent can be obsolete and
have a successor. We should consider the successors of the parents instead of
obsolete parents as that will do something like orphan+content-divergence
resolution both at the same time which is powerful and results in a single stack
while resolving content-divergence of stacks.
The test changes demonstrates that we can now successfully evolve a content
divergent stack.
#!/bin/bash
set -euox pipefail
unset GREP_OPTIONS
NOTOPIC="--config experimental.topic-mode=ignore"
compatbranches=`hg branches --quiet | grep 'mercurial-' | grep -v ':' | sort -n --reverse`
prev='stable'
for branch in $compatbranches; do
hg up $branch
hg merge $prev
hg commit -m "test-compat: merge $prev into $branch"
prev=$branch
done