tests: add `hg log -G` output when there are merge conflicts

The next commit will change the behavior for these. I've used slightly
different commands in the different tests to match the surrounding
style.

Differential Revision: https://phab.mercurial-scm.org/D8042

tests/test-backout.t

@@ -86,6 +86,33 b' commit option'
   commit: 1 unresolved (clean)
   update: (current)
   phases: 5 draft
+  $ hg log -G
+  @  changeset:   4:ed99997b793d
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:05 1970 +0000
+  |  summary:     ypples
+  |
+  o  changeset:   3:1c2161e97c0a
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:04 1970 +0000
+  |  summary:     Backed out changeset 22cb4f70d813
+  |
+  o  changeset:   2:a8c6e511cfee
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:02 1970 +0000
+  |  summary:     grapes
+  |
+  o  changeset:   1:22cb4f70d813
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:01 1970 +0000
+  |  summary:     chair
+  |
+  o  changeset:   0:a5cb2dde5805
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     tomatoes
+  
 
 file that was removed is recreated
 (this also tests that editor is not invoked if the commit message is
@@ -709,6 +736,23 b' Test usage of `hg resolve` in case of co'
   commit: 1 unresolved (clean)
   update: (current)
   phases: 3 draft
+  $ hg log -G
+  @  changeset:   2:b71750c4b0fd
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     capital ten
+  |
+  o  changeset:   1:913609522437
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     capital three
+  |
+  o  changeset:   0:a30dd8addae3
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     initial
+  
   $ hg resolve --all --debug
   picked tool ':merge' for foo (binary False symlink False changedelete False)
   merging foo

tests/test-strip.t

@@ -591,6 +591,18 b' Verify strip protects against stripping '
   phases: 2 draft
   mq:     3 unapplied
 
+  $ hg log --graph
+  @  changeset:   1:76dcf9fab855
+  |  tag:         tip
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     b
+  |
+  o  changeset:   0:9ab35a2d17cb
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     a
+  
   $ echo c > b
   $ hg strip tip
   abort: uncommitted changes

tests/test-update-branches.t

@@ -249,6 +249,19 b' Cases are run as shown in that table, ro'
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
+  $ hg log -G --template '{rev}:{node|short} {parents} {branches}\n'
+  o  5:ff252e8273df  b1
+  |
+  @  4:d047485b3896 0:60829823a42a  b1
+  |
+  | o  3:6efa171f091b 1:0786582aa4b1
+  | |
+  | | o  2:bd10386d478c
+  | |/
+  | o  1:0786582aa4b1
+  |/
+  o  0:60829823a42a
+  
   $ hg st
   M a
   ? a.orig