[MM-25714] Keeps track of the import lines of the posts while importing to report the right line on error (#14752)

* [MM-25714] Keeps track of the import lines of the posts while importing to report the right line on error

* Adding review comments

* Reverse the order of the error and error line params

store/timer_layer.go

@@ -4476,20 +4476,20 @@ func (s *TimerLayerPostStore) Overwrite(post *model.Post) (*model.Post, *model.A
 	return resultVar0, resultVar1
 }
 
-func (s *TimerLayerPostStore) OverwriteMultiple(posts []*model.Post) ([]*model.Post, *model.AppError) {
+func (s *TimerLayerPostStore) OverwriteMultiple(posts []*model.Post) ([]*model.Post, int, *model.AppError) {
 	start := timemodule.Now()
 
-	resultVar0, resultVar1 := s.PostStore.OverwriteMultiple(posts)
+	resultVar0, resultVar1, resultVar2 := s.PostStore.OverwriteMultiple(posts)
 
 	elapsed := float64(timemodule.Since(start)) / float64(timemodule.Second)
 	if s.Root.Metrics != nil {
 		success := "false"
-		if resultVar1 == nil {
+		if resultVar2 == nil {
 			success = "true"
 		}
 		s.Root.Metrics.ObserveStoreMethodDuration("PostStore.OverwriteMultiple", success, elapsed)
 	}
-	return resultVar0, resultVar1
+	return resultVar0, resultVar1, resultVar2
 }
 
 func (s *TimerLayerPostStore) PermanentDeleteBatch(endTime int64, limit int64) (int64, *model.AppError) {
@@ -4556,20 +4556,20 @@ func (s *TimerLayerPostStore) Save(post *model.Post) (*model.Post, *model.AppErr
 	return resultVar0, resultVar1
 }
 
-func (s *TimerLayerPostStore) SaveMultiple(posts []*model.Post) ([]*model.Post, *model.AppError) {
+func (s *TimerLayerPostStore) SaveMultiple(posts []*model.Post) ([]*model.Post, int, *model.AppError) {
 	start := timemodule.Now()
 
-	resultVar0, resultVar1 := s.PostStore.SaveMultiple(posts)
+	resultVar0, resultVar1, resultVar2 := s.PostStore.SaveMultiple(posts)
 
 	elapsed := float64(timemodule.Since(start)) / float64(timemodule.Second)
 	if s.Root.Metrics != nil {
 		success := "false"
-		if resultVar1 == nil {
+		if resultVar2 == nil {
 			success = "true"
 		}
 		s.Root.Metrics.ObserveStoreMethodDuration("PostStore.SaveMultiple", success, elapsed)
 	}
-	return resultVar0, resultVar1
+	return resultVar0, resultVar1, resultVar2
 }
 
 func (s *TimerLayerPostStore) Search(teamId string, userId string, params *model.SearchParams) (*model.PostList, *model.AppError) {