tests/test-copy2

fix some rename/copy bugs

- delete copy information when we update dirstate

  hg was keeping the copy state and marking things as copied on
  multiple commits

- files that are renamed should have no parents

  if you do a rename/copy to an existing file, it should not be marked
  as descending from its previous revisions.

- remove spurious print from filelog.renamed

- add some more copy tests

#!/bin/sh

hg init
echo foo > foo
hg add foo
hg commit -m1 -d"0 0"

echo "# should show copy"
cp foo bar
hg copy foo bar
hg debugstate

echo "# shouldn't show copy"
hg commit -m2 -d"0 0"
hg debugstate

echo "# should match"
hg debugindex .hg/data/foo.i
hg debugrename bar

echo bleah > foo
echo quux > bar
hg commit -m3 -d"0 0"

echo "# should not be renamed"
hg debugrename bar

cp foo bar
hg copy foo bar
echo "# should show copy"
hg debugstate
hg commit -m3 -d"0 0"

echo "# should show no parents for tip"
hg debugindex .hg/data/bar.i
echo "# should match"
hg debugindex .hg/data/foo.i
hg debugrename bar

echo "# should show no copies"
hg debugstate