jsonifying register file done so far

snippets/test9.py

@@ -0,0 +1,14 @@
+class A(object):
+    def __init__(self):
+        self.a = 1
+    def x(self):
+        return self.a
+
+class B(A):
+    def __init__(self):
+        self.a = 2
+    def x(self):
+        return self.a
+    def y(self):
+        return super().x()
+