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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/Object-MultiType-0.50.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 7 KiB
[ebuild  N     ] dev-perl/XML-Smart-1.790.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 129 KiB

Total: 2 packages (2 new), Size of downloads: 136 KiB