accounting: Make checkers show what they are doing

Before this change, all types of checkers showed "checking" after the
file name despite the fact that not all of them were checking.

After this change, they can show

- checking
- deleting
- hashing
- importing
- listing
- merging
- moving
- renaming

See: https://forum.rclone.org/t/what-is-rclone-checking-during-a-purge/35931/

fs/operations/operations.go

@@ -544,7 +544,7 @@ func SameObject(src, dst fs.Object) bool {
 // be nil.
 func Move(ctx context.Context, fdst fs.Fs, dst fs.Object, remote string, src fs.Object) (newDst fs.Object, err error) {
 	ci := fs.GetConfig(ctx)
-	tr := accounting.Stats(ctx).NewCheckingTransfer(src)
+	tr := accounting.Stats(ctx).NewCheckingTransfer(src, "moving")
 	defer func() {
 		if err == nil {
 			accounting.Stats(ctx).Renames(1)
@@ -633,7 +633,7 @@ func SuffixName(ctx context.Context, remote string) string {
 // deleting
 func DeleteFileWithBackupDir(ctx context.Context, dst fs.Object, backupDir fs.Fs) (err error) {
 	ci := fs.GetConfig(ctx)
-	tr := accounting.Stats(ctx).NewCheckingTransfer(dst)
+	tr := accounting.Stats(ctx).NewCheckingTransfer(dst, "deleting")
 	defer func() {
 		tr.Done(ctx, err)
 	}()
@@ -938,7 +938,7 @@ func List(ctx context.Context, f fs.Fs, w io.Writer) error {
 func ListLong(ctx context.Context, f fs.Fs, w io.Writer) error {
 	ci := fs.GetConfig(ctx)
 	return ListFn(ctx, f, func(o fs.Object) {
-		tr := accounting.Stats(ctx).NewCheckingTransfer(o)
+		tr := accounting.Stats(ctx).NewCheckingTransfer(o, "listing")
 		defer func() {
 			tr.Done(ctx, nil)
 		}()
@@ -996,7 +996,7 @@ func hashSum(ctx context.Context, ht hash.Type, base64Encoded bool, downloadFlag
 			return "ERROR", fmt.Errorf("hasher returned an error: %w", err)
 		}
 	} else {
-		tr := accounting.Stats(ctx).NewCheckingTransfer(o)
+		tr := accounting.Stats(ctx).NewCheckingTransfer(o, "hashing")
 		defer func() {
 			tr.Done(ctx, err)
 		}()
@@ -1929,7 +1929,6 @@ func moveOrCopyFile(ctx context.Context, fdst fs.Fs, fsrc fs.Fs, dstFileName str
 
 		_, err = Op(ctx, fdst, dstObj, dstFileName, srcObj)
 	} else {
-		tr := accounting.Stats(ctx).NewCheckingTransfer(srcObj)
 		if !cp {
 			if ci.IgnoreExisting {
 				fs.Debugf(srcObj, "Not removing source file as destination file exists and --ignore-existing is set")
@@ -1937,7 +1936,6 @@ func moveOrCopyFile(ctx context.Context, fdst fs.Fs, fsrc fs.Fs, dstFileName str
 				err = DeleteFile(ctx, srcObj)
 			}
 		}
-		tr.Done(ctx, err)
 	}
 	return err
 }