Feature summary (what you would like to be able to do and where):
As EditCheck tool would become more stable, experiments with its configuration (like rewriting patterns to regexps, as it was done a few days ago on ruwiki) may lead to bugs/many incorrect findings be shown to the end users (e.g. new editors). This isn't really good (Mitte27 has complained to me about that after my rewrites), so possibly we need some way to test (at least) new TextMatch edit checks with a separate configuration.

As a workaround, a new "test" config could be created with minimalEditcount: 10000 set for every check in it and then just imported in the main one, but, unfortunately, minimalEditcount is ignored in Suggestion Mode -- and if we set showAsSuggestion: false it's much harder to test checks for us.