These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] dev-util/wayland-scanner-1.26.0::gentoo  599 KiB
[ebuild  N     ] dev-libs/wayland-protocols-1.49::gentoo  USE="-test" 148 KiB

Total: 2 packages (2 new), Size of downloads: 746 KiB