The ornamental design for a glassescase, as shown and described.
FIG. 1 is a top perspective view of a glasses case showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The ornamental design, which is claimed, is shown in solid lines in the drawings. Any broken lines in the drawings depict unclaimed subject matter only and form no part of the claimed design.