tests: update annotate tests to work around simplemerge bug

test-annotate.t and test-fastannotate.hg were failing with --pure
since 57203e0210f8 (copies: calculate mergecopies() based on
pathcopies(), 2019-04-11). It turned out to be because the pure file
merge code behaved differently. I'm guessing it's the
mdiff.get_matching_blocks() that behaves differently, but I haven't
confirmed that.

With this content in the base:
  a
  a
  a

And this on the local side:
  a
  z
  a

And this on the other side:
  a
  a
  a
  b4
  c
  b6

It produced this conflict:
  a
  z
  a
  <<<<<<< working copy: b80e3e32f75a - test: c
  ||||||| base
  a
  =======
  a
  b4
  c
  b5
  >>>>>>> merge rev:    64afcdf8e29e - test: mergeb

I don't care enough about the pure Python code to fix it, so this
patch just updates the tests to manually resolve the conflict.

Differential Revision: https://phab.mercurial-scm.org/D6351

tests/test-annotate.t

@@ -273,10 +273,31 b' annotate after merge with -l'
   > EOF
   $ hg ci -mc -d '3 0'
   created new head
+Work around the pure version not resolving the conflict like native code
+#if pure
+  $ hg merge
+  merging b
+  warning: conflicts while merging b! (edit, then use 'hg resolve --mark')
+  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
+  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
+  [1]
+  $ cat <<EOF > b
+  > a
+  > z
+  > a
+  > b4
+  > c
+  > b5
+  > EOF
+  $ hg resolve -m b
+  (no more unresolved files)
+  $ rm b.orig
+#else
   $ hg merge
   merging b
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
+#endif
   $ echo d >> b
   $ hg ci -mmerge2 -d '4 0'
 

tests/test-fastannotate-hg.t

@@ -273,10 +273,31 b' annotate after merge with -l'
   > EOF
   $ hg ci -mc -d '3 0'
   created new head
+Work around the pure version not resolving the conflict like native code
+#if pure
+  $ hg merge
+  merging b
+  warning: conflicts while merging b! (edit, then use 'hg resolve --mark')
+  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
+  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
+  [1]
+  $ cat <<EOF > b
+  > a
+  > z
+  > a
+  > b4
+  > c
+  > b5
+  > EOF
+  $ hg resolve -m b
+  (no more unresolved files)
+  $ rm b.orig
+#else
   $ hg merge
   merging b
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
+#endif
   $ echo d >> b
   $ hg ci -mmerge2 -d '4 0'