Renamed test.py to testcode.py so one can import Python's

test package from inside IDLE.  (Suggested by Jack Jansen.)

Tools/idle/testcode.py

@@ -0,0 +1,31 @@
+import string
+
+def f():
+    a = 0
+    b = 1
+    c = 2
+    d = 3
+    e = 4
+    g()
+
+def g():
+    h()
+
+def h():
+    i()
+
+def i():
+    j()
+
+def j():
+    k()
+
+def k():
+    l()
+
+l = lambda: test()
+
+def test():
+    string.capwords(1)
+
+f()