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/Exception-Base-0.250.100-r2::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 59 KiB
[ebuild  N     ] dev-perl/Symbol-Util-0.20.300-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 28 KiB
[ebuild  N     ] dev-perl/constant-boolean-0.20.0-r2::gentoo  PERL_FEATURES="ithreads (-debug) -quadmath" 14 KiB
[ebuild  N     ] dev-perl/Exception-Died-0.60.0-r3::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 20 KiB

Total: 4 packages (4 new), Size of downloads: 119 KiB