sortdict: add iteritems method
Future patches will start using sortdict for log operations where order is
important. Adding iteritems removes the headache of having to remember to use
items() if the object is a sortdict.
% ancestors of [] and not of [1]
[]
% ancestors of [] and not of []
[]
% ancestors of [12] and not of []
[0, 1, 2, 4, 6, 7, 9, 12]
% ancestors of [0] and not of [0]
[]
% ancestors of [4, 5, 6] and not of [6, 5, 4]
[]
% ancestors of [-1] and not of [12]
[]
% ancestors of [12] and not of [-1]
[0, 1, 2, 4, 6, 7, 9, 12]
% ancestors of [12] and not of [9]
[12]
% ancestors of [9] and not of [12]
[]
% ancestors of [12, 9] and not of [7]
[6, 9, 12]
% ancestors of [7, 6] and not of [12]
[]
% ancestors of [10] and not of [11, 12]
[5, 10]
% ancestors of [11] and not of [10]
[3, 7, 11]
% ancestors of [11] and not of [10, 12]
[3, 11]
% ancestors of [12] and not of [10]
[6, 7, 9, 12]
% ancestors of [12] and not of [11]
[6, 9, 12]
% ancestors of [10, 11, 12] and not of [13]
[0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12]
% ancestors of [13] and not of [10, 11, 12]
[8, 13]
% lazy ancestor set for [], stoprev = 0, inclusive = False
[]
% lazy ancestor set for [11, 13], stoprev = 0, inclusive = False
[7, 8, 3, 4, 1, 0]
% lazy ancestor set for [1, 3], stoprev = 0, inclusive = False
[1, 0]
% lazy ancestor set for [11, 13], stoprev = 0, inclusive = True
[11, 13, 7, 8, 3, 4, 1, 0]
% lazy ancestor set for [11, 13], stoprev = 6, inclusive = False
[7, 8]
% lazy ancestor set for [11, 13], stoprev = 6, inclusive = True
[11, 13, 7, 8]