xt/rakudoc-types.rakutest failing on valid links

[arkiuat]

xt/rakudoc-types.rakutest is failing when "Regex" is linked to the /language/regexes and trying to force an inappropriate (for that context) change to /type/Regex, e. g. in doc/Language/variables.rakudoc

Suggestions

@coke suggested adding a skiplist for things that are class names but can safely point elsewhere