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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/IO-Tty-1.200.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 28 KiB
[ebuild  N     ] dev-perl/IO-Stty-0.40.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 10 KiB
[ebuild  N     ] dev-perl/Expect-1.380.0::gentoo  USE="-examples -minimal -test" PERL_FEATURES="ithreads (-debug) -quadmath" 62 KiB

Total: 3 packages (3 new), Size of downloads: 99 KiB