Extend module reimport test.

tests/run/reimport_from_package.srctree

@@ -32,3 +32,13 @@ import a
 import atest.package.module as module
 assert module in sys.modules.values(), list(sys.modules)
 assert sys.modules['atest.package.module'] is module, list(sys.modules)
+
+from . import pymodule
+
+######## atest/package/pymodule.py ########
+
+from . import module
+from ..package import module
+import atest.package.module
+
+import a