Python: Add 2-only library tests.

python/ql/test/2/library-tests/objects/Literals.ql

@@ -0,0 +1,16 @@
+
+/* Test that there are no literals that do not have a corresponding object. */
+import python
+
+
+string repr(Expr e) {
+    result = e.(Num).getN() or
+    result = e.(Bytes).getS() or
+    result = e.(Unicode).getS()
+}
+
+from ImmutableLiteral l
+where 
+not exists(l.getLiteralObject())
+
+select l.getLocation().getStartLine(), repr(l)

python/ql/test/2/library-tests/objects/test.py

@@ -0,0 +1,5 @@
+
+0666
+01
+1L
+4987312561856745907287624786230562734672583763984576267L