move old list test from broken into list.pyx

tests/broken/r_builtinlist.pyx

-def f():
-    cdef list l
-    l = list()
-    l.append("second")
-    l.insert(0, "first")
-    return l

tests/run/list.pyx

@@ -77,6 +77,16 @@ def test_list_append():
     l1.append(4)
     return l1
 
+def test_list_append_insert():
+    """
+    >>> test_list_append_insert()
+    ['first', 'second']
+    """
+    cdef list l = []
+    l.append("second")
+    l.insert(0, "first")
+    return l
+
 def test_list_pop():
     """
     >>> test_list_pop()