Pack using the change indices instead of the measured heights of the change outputs.

Author: papandreou

lib/styles.js

@@ -450,8 +450,8 @@ module.exports = function (expect) {
                 var lastChangeIndex = Math.max(moveSourceAndMoveTarget.source.changeIndex, moveSourceAndMoveTarget.target.changeIndex);
 
                 arrowSpecs.push({
-                    start: topByChangeNumber[firstChangeIndex],
-                    end: topByChangeNumber[lastChangeIndex] + 1,
+                    start: firstChangeIndex,
+                    end: lastChangeIndex,
                     direction: moveSourceAndMoveTarget.source.changeIndex < moveSourceAndMoveTarget.target.changeIndex ? 'down' : 'up'
                 });
             });
@@ -461,9 +461,9 @@ module.exports = function (expect) {
                 columnSet.forEach(function (entry) {
                     arrows.push(that.clone().arrow({
                         left: i * 2,
-                        top: entry.start,
+                        top: topByChangeNumber[entry.start],
                         width: 1 + (packing.length - i) * 2,
-                        height: entry.end - entry.start,
+                        height: topByChangeNumber[entry.end] - topByChangeNumber[entry.start] + 1,
                         direction: entry.direction
                     }));
                 });