test: pypy partially fixed issue 3792

https://foss.heptapod.net/pypy/pypy/-/issues/3792

Author: nedbat

tests/test_process.py

@@ -283,7 +283,6 @@ def test_running_missing_file(self):
         assert "rror" not in out
         assert status == 1
 
-    @xfail_pypy_3792    # Because the file names aren't yet absolute.
     def test_code_throws(self):
         self.make_file("throw.py", """\
             class MyException(Exception):