tests: roll test-commit-copy.t into test-commit.t

tests/test-commit.t

@@ -283,3 +283,24 b' test commit message content'
   HG: removed removed
   abort: empty commit message
   [255]
+  $ cd ..
+
+
+commit copy
+
+  $ hg init dir2
+  $ cd dir2
+  $ echo bleh > bar
+  $ hg add bar
+  $ hg ci -m 'add bar'
+
+  $ hg cp bar foo
+  $ echo >> bar
+  $ hg ci -m 'cp bar foo; change bar'
+
+  $ hg debugrename foo
+  foo renamed from bar:26d3ca0dfd18e44d796b564e38dd173c9668d3a9
+  $ hg debugindex bar
+     rev    offset  length   base linkrev nodeid       p1           p2
+       0         0       6      0       0 26d3ca0dfd18 000000000000 000000000000
+       1         6       7      1       1 d267bddd54f7 26d3ca0dfd18 000000000000