Move tests in basic/tests/ up one level preparating to multiple test dirs.

tests/basics/class1.py

@@ -0,0 +1,28 @@
+# basic class
+
+def go():
+    class C:
+        def f():
+            print(1)
+
+        def g(self):
+            print(2)
+
+        def set(self, value):
+            self.value = value
+
+        def print(self):
+            print(self.value)
+
+    C.f()
+    C()
+    C().g()
+
+    o = C()
+    o.set(3)
+    o.print()
+
+    C.set(o, 4)
+    C.print(o)
+
+go()