In the C tests: When we create a wc.db file containing test data, we should
close it before running the tests on it using another db instance.

* subversion/tests/libsvn_wc/db-test.c
  (create_open): Update caller.

* subversion/tests/libsvn_wc/entries-compat.c
  (create_fake_wc): Update caller.

* subversion/tests/libsvn_wc/utils.c
  (svn_test__create_fake_wc): Remove result pool. There are no output
    arguments. Install statistics.

* subversion/tests/libsvn_wc/utils.h
  (svn_test__create_fake_wc): Update prototype.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1558571 13f79535-47bb-0310-9956-ffa450edef68