Add another little test to make sure we roundtrip multiple list comp ifs ok.
Add tests for generator expressions too.
diff --git a/Lib/test/test_parser.py b/Lib/test/test_parser.py
index 771fe9d..8aa1657 100644
--- a/Lib/test/test_parser.py
+++ b/Lib/test/test_parser.py
@@ -51,6 +51,10 @@
         self.check_expr("[1, 2, 3]")
         self.check_expr("[x**3 for x in range(20)]")
         self.check_expr("[x**3 for x in range(20) if x % 3]")
+        self.check_expr("[x**3 for x in range(20) if x % 2 if x % 3]")
+        self.check_expr("list(x**3 for x in range(20))")
+        self.check_expr("list(x**3 for x in range(20) if x % 3)")
+        self.check_expr("list(x**3 for x in range(20) if x % 2 if x % 3)")
         self.check_expr("foo(*args)")
         self.check_expr("foo(*args, **kw)")
         self.check_expr("foo(**kw)")