debugmergestate: print out record type for files

We're going to add a separate record type for change/delete conflicts soon. We
need to make sure they get stored with the correct record type so that older
versions of Mercurial correctly abort when they see change/delete records.

mercurial/commands.py

@@ -2547,8 +2547,8 b' def debugmergestate(ui, repo, *args):'
                     flags = r[7]
                 else:
                     onode, flags = r[7:9]
-                ui.write(('file: %s (state "%s", hash %s)\n')
-                         % (f, state, hash))
+                ui.write(('file: %s (record type "%s", state "%s", hash %s)\n')
+                         % (f, rtype, state, hash))
                 ui.write(('  local path: %s (flags "%s")\n') % (lfile, flags))
                 ui.write(('  ancestor path: %s (node %s)\n') % (afile, anode))
                 ui.write(('  other path: %s (node %s)\n') % (ofile, onode))

tests/test-backout.t

@@ -686,7 +686,7 b' Test usage of `hg resolve` in case of co'
   * version 2 records
   local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
   other: a30dd8addae3ce71b8667868478542bc417439e6
-  file: foo (state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
+  file: foo (record type "F", state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
     local path: foo (flags "")
     ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
     other path: foo (node f50039b486d6fa1a90ae51778388cad161f425ee)
@@ -694,7 +694,7 b' Test usage of `hg resolve` in case of co'
   $ hg debugmergestate
   * version 1 records
   local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
-  file: foo (state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
+  file: foo (record type "F", state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
     local path: foo (flags "")
     ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
     other path: foo (node not stored in v1 format)