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

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] app-vim/webapi-0.3-r1::gentoo  26 KiB
[ebuild  N     ] app-vim/gist-7.3-r1::gentoo  18 KiB

Total: 2 packages (2 new), Size of downloads: 44 KiB