Fix cygwin test failure due to shortpath usage

Two tests are failing on Cygwin because the argument is passed as
a long-path and the Path is ending up as a short-path:

AllPlatformTests.test_run_target_files_path

  Traceback (most recent call last):
    File "/cygdrive/d/a/meson/meson/test cases/common/51 run target/check-env.py", line 22, in <module>
      assert build_root == env_build_root
  AssertionError

SubprojectsCommandTests.test_purge

  >       self.assertEqual(deleting(out), sorted([
              str(self.subprojects_dir / 'redirect.wrap'),
              str(self.subprojects_dir / 'sub_file'),
              str(self.subprojects_dir / 'sub_git'),
          ]))
  E       AssertionError: Lists differ: ['/cygdrive/c/Users/runneradmin/AppData/Local/Temp/tmpeaa2a49[205 chars]git'] != ['/cygdrive/c/Users/RUNNER~1/AppData/Local/Temp/tmpeaa2a49z/s[196 chars]git']

  [...]

  ['/cygdrive/c/Users/runneradmin/AppData/Local/Temp/tmpeaa2a49z/src/subprojects/redirect.wrap',
                      ^^^^^^^^^^^
  ['/cygdrive/c/Users/RUNNER~1/AppData/Local/Temp/tmpeaa2a49z/src/subprojects/redirect.wrap',
                      ^^^^^^^^

The fix is to not use the tempdir for all tests, but only for tests
that check the mode.

0 files changed, 0 insertions, 0 deletions