specials(): squash another incorrect hash(x) == id(x)

test.  Add some lines that at least invoke the default
__hash__, although there's nothing to check there beyond
that they don't blow up.

Lib/test/test_descr.py

@@ -1763,6 +1763,9 @@ def specials():
     c1 = C()
     c2 = C()
     verify(not not c1)
+    verify(id(c1) != id(c2))
+    hash(c1)
+    hash(c2)
     vereq(cmp(c1, c2), cmp(id(c1), id(c2)))
     vereq(c1, c1)
     verify(c1 != c2)
@@ -1784,7 +1787,9 @@ def specials():
     d1 = D()
     d2 = D()
     verify(not not d1)
-    vereq(hash(d1), id(d1))
+    verify(id(d1) != id(d2))
+    hash(d1)
+    hash(d2)
     vereq(cmp(d1, d2), cmp(id(d1), id(d2)))
     vereq(d1, d1)
     verify(d1 != d2)