Re-enable the OverflowError test for test_truediv on test_complex (GH-16591)

(cherry picked from commit 1dbe5373851acb85ba91f0be7b83c69563acd68d)

Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
diff --git a/Lib/test/test_complex.py b/Lib/test/test_complex.py
index fe1e566..dee5c7f 100644
--- a/Lib/test/test_complex.py
+++ b/Lib/test/test_complex.py
@@ -100,8 +100,7 @@
                            complex(random(), random()))
 
         self.assertRaises(ZeroDivisionError, complex.__truediv__, 1+1j, 0+0j)
-        # FIXME: The following currently crashes on Alpha
-        # self.assertRaises(OverflowError, pow, 1e200+1j, 1e200+1j)
+        self.assertRaises(OverflowError, pow, 1e200+1j, 1e200+1j)
 
         self.assertAlmostEqual(complex.__truediv__(2+0j, 1+1j), 1-1j)
         self.assertRaises(ZeroDivisionError, complex.__truediv__, 1+1j, 0+0j)