bug#57475: 29.0.50; Position problem with make-frame on Lucid build

[Stephen Berman]

On a Lucid build, make-frame appears to ignore the frame parameters
(left . 0) and (top . 0), when passed individually or together:

0. emacs -Q
1. M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (938 351)
2. M-: (make-frame)
   M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (938 350)
3. M-: (make-frame '((left . 0) (top . 0)))
   M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (938 350)
4. M-: (make-frame '((left . 0)))
   M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (938 350)
5. M-: (make-frame '((top . 0)))
   M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (938 350)

If one or both of the `top' and `left' parameters has a non-zero value,
that value is correctly realized; if only one of these parameters is
passed with a non-zero value, the other parameter is realized as 0:

5. M-: (make-frame '((left . 1) (top . 1)))
   M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (1 1)
6.  M-: (make-frame '((left . 1)))
   M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (1 0)
7. M-: (make-frame '((top . 1)))
   M-: (progn (list (alist-get 'left (frame-parameters))
                    (alist-get 'top (frame-parameters))))
=> (0 1)

The Gtk3 and non-toolkit builds do not have these problems, and on the
Lucid build, modify-frame-parameters and set-frame-position also work
fine with a 0 value of these parameters.


In GNU Emacs 29.0.50 (build 2, x86_64-pc-linux-gnu, X toolkit, cairo
 version 1.17.6, Xaw scroll bars) of 2022-08-28 built on strobelfs2
Repository revision: 35af917f187719fecadde278a51fd10bf47eed07
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Linux From Scratch r11.0-165

Configured using:
 'configure -C --with-x-toolkit=lucid --with-xinput2 'CFLAGS=-Og -g3''

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG RSVG
SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS WEBP X11 XDBE XIM
XINPUT2 XPM LUCID ZLIB