(make_current): Preserve the mouse_face_p flag of the

(make_current): Preserve the mouse_face_p flag of the
current glyph row.
(update_window_line): Add parameter MOUSE_FACE_OVERWRITTEN_P.  Set
it when any row is written to that contains glyphs highlighted in
mouse-face.
(update_window): Call the window update end hook with new
parameter MOUSE_FACE_OVERWRITTEN_P.
(direct_output_for_insert): Give up if row contains mouse-face.