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/Unicode-UTF8-0.620.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 86 KiB
[ebuild  N     ] dev-perl/Path-Tiny-0.150.0::gentoo  USE="-minimal -test" PERL_FEATURES="ithreads (-debug) -quadmath" 104 KiB
[ebuild  N     ] dev-perl/Test-Filename-0.30.0-r3::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 11 KiB

Total: 3 packages (3 new), Size of downloads: 200 KiB