Refactor a bit for Python 2.

test/normalizer_issue_files/allowed_syntax_python3.6.py

@@ -8,3 +8,38 @@ foo[3]: int
 def glob():
     global x
     y: foo = x
+
+
+def c():
+    a = 3
+
+    def d():
+        class X():
+            nonlocal a
+
+
+def x():
+    a = 3
+
+    def y():
+        nonlocal a
+
+
+def x():
+    def y():
+        nonlocal a
+
+    a = 3
+
+
+def x():
+    a = 3
+
+    def y():
+        class z():
+            nonlocal a
+
+
+a = *args, *args
+error[(*args, *args)] = 3
+*args, *args