ENHANCED: CLP(FD): Faster sum/3 and scalar_product/4 when the lists contain                    only integers, further reducing the need for sumlist/2.
ENHANCED: CLP(FD): Faster sum/3 and scalar_product/4 when the lists contain
                   only integers, further reducing the need for sumlist/2.

jn7163/swipl-devel,jn7163/swipl-devel,koryonik/swipl-devel,jn7163/swipl-devel,edechter/swipl-devel,edechter/swipl-devel,edechter/swipl-devel,jn7163/swipl-devel,edechter/swipl-devel,mndrix/swipl-devel,jn7163/swipl-devel,koryonik/swipl-devel,mndrix/swipl-devel,edechter/swipl-devel,mndrix/swipl-devel,mndrix/swipl-devel,mndrix/swipl-devel,koryonik/swipl-devel,koryonik/swipl-devel,koryonik/swipl-devel