bookmark: complexity pull-push test to have deeper tree

This changeset only touch test.

The previous test was correct, it tested that the successors of an old bookmark
position was seen as a valid destination for bookmark.

However, a newer version is made for two reason:

(1) The new test check further. It check that the descendant of the successors
    is a valid destination

(2) An ever more complexe test is needed to validate a future fix to issue 3680
    Splitting complexification of the test and actual bugfix help to reduce the
    noise in the bugfix changeset. Issue 3680 is NOT fixed by this changeset.

tests/test-bookmarks-pushpull.t

@@ -1,6 +1,8 b''
   $ "$TESTDIR/hghave" serve || exit 80
 
   $ cat << EOF >> $HGRCPATH
+  > [ui]
+  > logtemplate={rev}:{node|short} {desc|firstline}
   > [phases]
   > publish=False
   > [extensions]
@@ -197,6 +199,22 b' diverging a remote bookmark fails'
   $ hg ci -Am4
   adding f2
   created new head
+  $ echo c5 > f2
+  $ hg ci -Am5
+  $ hg log -G
+  @  5:c922c0139ca0 5
+  |
+  o  4:4efff6d98829 4
+  |
+  | o  3:f6fc62dde3c0 3
+  |/
+  | o  2:0d2164f0ce0d 1
+  |/
+  | o  1:9b140be10808 2
+  |/
+  o  0:4e3505fd9583 test
+  
+
   $ hg book -f Y
 
   $ cat <<EOF > ../a/.hg/hgrc
@@ -211,7 +229,7 b' diverging a remote bookmark fails'
   $ hg push http://localhost:$HGPORT2/
   pushing to http://localhost:$HGPORT2/
   searching for changes
-  abort: push creates new remote head 4efff6d98829!
+  abort: push creates new remote head c922c0139ca0!
   (did you forget to merge? use push -f to force)
   [255]
   $ hg -R ../a book
@@ -227,7 +245,7 b' Unrelated marker does not alter the deci'
   $ hg push http://localhost:$HGPORT2/
   pushing to http://localhost:$HGPORT2/
   searching for changes
-  abort: push creates new remote head 4efff6d98829!
+  abort: push creates new remote head c922c0139ca0!
   (did you forget to merge? use push -f to force)
   [255]
   $ hg -R ../a book
@@ -241,7 +259,9 b' Update to a successor works'
   $ hg id --debug -r 3
   f6fc62dde3c0771e29704af56ba4d8af77abcc2f
   $ hg id --debug -r 4
-  4efff6d98829d9c824c621afd6e3f01865f5439f tip Y
+  4efff6d98829d9c824c621afd6e3f01865f5439f
+  $ hg id --debug -r 5
+  c922c0139ca03858f655e4a2af4dd02796a63969 tip Y
   $ hg debugobsolete f6fc62dde3c0771e29704af56ba4d8af77abcc2f 4efff6d98829d9c824c621afd6e3f01865f5439f
   $ hg push http://localhost:$HGPORT2/
   pushing to http://localhost:$HGPORT2/
@@ -249,12 +269,12 b' Update to a successor works'
   remote: adding changesets
   remote: adding manifests
   remote: adding file changes
-  remote: added 1 changesets with 1 changes to 1 files (+1 heads)
+  remote: added 2 changesets with 2 changes to 1 files (+1 heads)
   updating bookmark Y
   $ hg -R ../a book
      @                         1:0d2164f0ce0d
    * X                         1:0d2164f0ce0d
-     Y                         4:4efff6d98829
+     Y                         5:c922c0139ca0
      Z                         1:0d2164f0ce0d
 
 hgweb
@@ -278,7 +298,7 b' hgweb'
   @	9b140be1080824d768c5a4691a564088eede71f9
   foo	0000000000000000000000000000000000000000
   foobar	9b140be1080824d768c5a4691a564088eede71f9
-  Y	4efff6d98829d9c824c621afd6e3f01865f5439f
+  Y	c922c0139ca03858f655e4a2af4dd02796a63969
   X	9b140be1080824d768c5a4691a564088eede71f9
   Z	0d2164f0ce0d8f1d6f94351eba04b794909be66c
   $ hg out -B http://localhost:$HGPORT/
@@ -313,13 +333,13 b' hgweb'
   adding changesets
   adding manifests
   adding file changes
-  added 4 changesets with 4 changes to 3 files (+2 heads)
+  added 5 changesets with 5 changes to 3 files (+2 heads)
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R cloned-bookmarks bookmarks
      @                         1:9b140be10808
      X                         1:9b140be10808
-     Y                         3:4efff6d98829
+     Y                         4:c922c0139ca0
      Z                         2:0d2164f0ce0d
      foo                       -1:000000000000
      foobar                    1:9b140be10808
@@ -333,7 +353,7 b' bookmark, not all outgoing changes:'
   adding changesets
   adding manifests
   adding file changes
-  added 4 changesets with 4 changes to 3 files (+2 heads)
+  added 5 changesets with 5 changes to 3 files (+2 heads)
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd addmarks