The following changes fix Bug#3005 for wide glyphs on each platform,

The following changes fix Bug#3005 for wide glyphs on each platform,
without	reintroducing Bug#1258 for stretch glyphs.

* xterm.c (x_draw_bar_cursor): Limit cursor width differently for
BAR_CURSOR and HBAR_CURSOR.  Calculate width of HBAR_CURSOR using
get_phys_cursor_geometry.

* w32term.c (x_draw_bar_cursor):  Limit cursor width differently
for BAR_CURSOR and HBAR_CURSOR.  Calculate width of HBAR_CURSOR
using get_phys_cursor_geometry.

* nsterm.m (ns_draw_window_cursor): HBAR_CURSOR width already
correctly calculated.