py3: update the python3-whitelist with new tests which pass on Python 3
We have now 34 tests passing on Python 3.
--- a/contrib/python3-whitelist Wed Jun 28 06:49:01 2017 -0700
+++ b/contrib/python3-whitelist Tue Jun 27 21:16:08 2017 +0530
@@ -1,11 +1,34 @@
test-ancestor.py
+test-backwards-remove.t
+test-branch-tag-confict.t
+test-casecollision.t
+test-check-commit.t
test-check-execute.t
+test-check-pyflakes.t
+test-check-pylint.t
test-check-shbang.t
test-contrib-check-code.t
test-contrib-check-commit.t
test-ctxmanager.py
+test-diff-issue2761.t
+test-diff-reverse.t
+test-diff-subdir.t
+test-dirstate-nonnormalset.t
test-doctest.py
+test-empty-dir.t
+test-excessive-merge.t
+test-issue1089.t
+test-issue1993.t
+test-issue842.t
+test-locate.t
test-lrucachedict.py
+test-manifest.py
+test-merge-default.t
+test-merge-subrepos.t
+test-merge2.t
+test-merge5.t
+test-revlog-packentry.t
test-run-tests.py
test-unified-test.t
+test-update-reverse.t
test-xdg.t