The ornamental design for a swinginglid, as shown and described.
FIG. 1 is a top frontal perspective view of a swinging lid according to my design;
FIG. 2 is a front view of the swinging lid shown in FIG. 1;
FIG. 3 is a back view of the swinging lid shown in FIG. 1;
FIG. 4 is a left side view of the swinging lid shown in FIG. 1;
FIG. 5 is a right side view of the swinging lid shown in FIG. 1;
FIG. 6 is a top view of the swinging lid shown in FIG. 1; and,
FIG. 7 is a bottom view of the swinging lid shown in FIG. 1.
The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.