Fix collecting reference cycle sources

Author: Inspirate789

Diff for: hypervisor.go

@@ -56,7 +56,7 @@ func mergeSearchFunctions[F ~func(K) (V, bool), K comparable, V any](functions [
 }
 
 func (h *hypervisor) mergeGenerations(sizesBefore, sizesAfter []int) {
-	for i := len(sizesBefore) - 3; i >= 0; i-- { // len(sizesBefore) == len(sizesAfter)
+	for i := len(sizesBefore) - 3; i >= 0; i-- { // suppose that len(sizesBefore) == len(sizesAfter)
 		if float64(sizesAfter[i])/float64(sizesBefore[i]) <= generationMovementThreshold {
 			h.mem.movingGenerations[i].MoveTo(h.mem.movingGenerations[i+1])
 		}

Diff for: internal/generation/mark_worker.go

@@ -127,7 +127,7 @@ func (mw markWorker) processObject(object *ObjectMetadata, visited bool) (rcSrcs
 			if nextObject == object {
 				continue
 			}
-			rcSrcs = mw.processObject(nextObject, visited)
+			rcSrcs = append(rcSrcs, mw.processObject(nextObject, visited)...)
 			delete(mw.visited, nextObject.address)
 			if len(rcSrcs) != 0 {
 				object.cyclicallyReferenced = true
@@ -137,8 +137,8 @@ func (mw markWorker) processObject(object *ObjectMetadata, visited bool) (rcSrcs
 			}
 		}
 	} else {
-		rcSrcs = append(rcSrcs, rcSrc)
 		object.Unlock()
+		rcSrcs = append(rcSrcs, rcSrc)
 	}
 
 	return