bug 1413289: Refactor annotateLinks tests
bug 1413289: Refactor annotateLinks tests

Convert annotateLinks test from one big test case to several pytest-style
tests.

SphinxKnight/kuma,escattone/kuma,a2sheppy/kuma,jwhitlock/kuma,jwhitlock/kuma,jwhitlock/kuma,Elchi3/kuma,a2sheppy/kuma,a2sheppy/kuma,Elchi3/kuma,a2sheppy/kuma,jwhitlock/kuma,SphinxKnight/kuma,Elchi3/kuma,jwhitlock/kuma,mozilla/kuma,mozilla/kuma,a2sheppy/kuma,SphinxKnight/kuma,Elchi3/kuma,escattone/kuma,SphinxKnight/kuma,mozilla/kuma,Elchi3/kuma,SphinxKnight/kuma,mozilla/kuma,SphinxKnight/kuma,escattone/kuma,mozilla/kuma