This patch adds special cases to Shader::uniform_int routine
to allow writing of small types (1 bytes, 2 bytes) to the push
constant buffer.
This previously interpreted all incoming push constant data as
integer components only, resulting in rendering artifacts such as
bad SRGB mode selection and shader editor not rendering due
to mis-aligned overlay parameter, as the uniform assignment
would overflow consecutive small types.
Authored by Apple: Michael Parkin-White
Pull Request: https://projects.blender.org/blender/blender/pulls/119285
703353b5da