Foreach '' in sequence from '' to '' with step '' should support negative steps

[matteo-cristino]

For example to reverse a list in zencode now you have to do

Given I have a 'number array' named 'list'
Given I have a 'number' named '0'
Given I have a 'number' named '1'

When I create the 'number array' named 'res'

# limit of iteration
When I create the size of 'list'
and I create the result of 'size' - '1'
and I rename 'result' to 'limit'

Foreach 'i' in sequence from '0' to 'limit' with step '1'
    When I create the result of 'size' - 'i'
    and I create the copy of element 'result' from array 'list'
    and I move 'copy' in 'res'
    and I remove 'result'
EndForeach

Then print 'res'

while with negative steps you could do

Given I have a 'number array' named 'list'
Given I have a 'number' named '1'
Given I have a 'number' named '-1'

When I create the 'number array' named 'res'

# limit of iteration
When I create the size of 'list'

Foreach 'i' in sequence from 'size' to '1' with step '-1'
    and I create the copy of element 'result' from array 'list'
    and I move 'copy' in 'res'
EndForeach

Then print 'res'

making it easier to read

[matteo-cristino]

Moreover since Foreach '' in sequence from '' to '' with step '' includes the extremes (from and to), it should works fine when they are equal, e.g. Foreach 'i' in sequence from '2' to '2' with step '1' should run one time the foreach body with i equal to 2