x11-toolkits/libXmu: EditRes functionality is unreliable on 64 bit

[cy]

Summary

displaying, "this widget no longer exists in the client." According
to the above URL, an API defect in libXmu which fails to initialize
the top 32-bits of a 64-bit ID resulting in this error. His fix adds
four new "I/O" functrions reembling the existing ones that indirect
through an internal lookujp table. The co

Problem description and complete discussion can be found at,

https://gitlab.freedesktop.org/xorg/lib/libxmu/-/issues/1

Obtained from: https://gitlab.freedesktop.org/xorg/lib/libxmu/-/issues/1
MFH: 2023Q4

Test Plan

Fixed my editres problem on amd64.

[cy]

This can be resolved through simple sign extension. I will submit a new review based on https://gitlab.freedesktop.org/xorg/lib/libxmu/-/commit/35831b86d10dfbe7af05040fae1fa4a6181ebfc0#7359f2931017ad20a4b959d6d89fd503442d073e_1884_1884.

[cy]

The simpler approach does not work with open-motif. An open-motif patch will be coming down the pipeline after this patch is committed.