tests/test-rebuildstate.t

parser: use PyInt_FromSsize_t in index_stats

Eliminates

  mercurial/parsers.c(515) : warning C4244: 'function' : conversion from
  'Py_ssize_t' to 'long', possible loss of data
  mercurial/parsers.c(520) : warning C4244: 'function' : conversion from
  'Py_ssize_t' to 'long', possible loss of data
  mercurial/parsers.c(521) : warning C4244: 'function' : conversion from
  'Py_ssize_t' to 'long', possible loss of data

when compiling for Windows x64 target using the Microsoft compiler.

PyInt_FromSsize_t does not exist for Python 2.4 and earlier, so we define a
fallback in util.h to use PyInt_FromLong when compiling for Python 2.4.

basic test for hg debugrebuildstate

  $ hg init repo
  $ cd repo

  $ touch foo bar
  $ hg ci -Am 'add foo bar'
  adding bar
  adding foo

  $ touch baz
  $ hg add baz
  $ hg rm bar

  $ hg debugrebuildstate

state dump after

  $ hg debugstate --nodates | sort
  n 644         -1 bar
  n 644         -1 foo

status

  $ hg st -A
  ! bar
  ? baz
  C foo