xproto: fix TranslateCoordinates reply
xproto: fix TranslateCoordinates reply

dst_x and dst_y are signed values (listed as INT16 in the spec).

Signed-off-by: Julien Cristau <82c7ebd12259428dfee9dc86e69f3a9d6f3dccb9@debian.org>
Reviewed-by: Mikhail Gusarov <564bfd3be400fb2d2e5bc80e7dbb04d231147d45@dottedmag.net>
Signed-off-by: Julien Danjou <5c682c2d1ec4073e277f9ba9f4bdf07e5794dabe@danjou.info>

nbaum/xcb-proto,nbaum/xcb-proto,stapelberg/xcb-proto,stapelberg/xcb-proto