ENH: save overhang polygons in cache data

JIRA: none

Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: I6887774f986843b094c05da48de3e2d6234a2c9e

src/libslic3r/Print.hpp

@@ -89,8 +89,8 @@ enum PrintObjectStep {
     posSlice, posPerimeters, posPrepareInfill,
     posInfill, posIroning, posSupportMaterial,
     // BBS
-    posSimplifyWall, posSimplifyInfill, posSimplifySupportPath,
     posDetectOverhangsForLift,
+    posSimplifyWall, posSimplifyInfill, posSimplifySupportPath,
     posCount,
 };