Change sys.path for the test to succeed.

Tested locally with a python3 extension module (in
/extensions/compiled33).

Also tested that reverting a75773cf9f make
the test fail.

test/test_compiled.py

@@ -13,6 +13,7 @@ from .helpers import cwd_at
 def test_compiled():
     if platform.architecture()[0] == '64bit':
         package_name = "compiled%s%s" % sys.version_info[:2]
+        sys.path.insert(0, os.getcwd())
         if os.path.exists(package_name):
             s = jedi.Script("from %s import compiled; compiled." % package_name)
             assert len(s.completions()) >= 2