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-Map-0.112.0-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 465 KiB
[ebuild  N     ] dev-perl/Unicode-String-2.100.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 119 KiB
[ebuild  N     ] dev-perl/Jcode-2.70.0-r3::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 342 KiB
[ebuild  N     ] dev-perl/Unicode-Map8-0.130.0-r3::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 97 KiB
[ebuild  N     ] dev-perl/Unicode-MapUTF8-1.140.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 20 KiB

Total: 5 packages (5 new), Size of downloads: 1042 KiB