They are quite easy to search for actually, because they are sparse and you tend to not get so many spurious results due hitting things that contain your query as a substring. Even then, the glyphs appear inline in the warning message, they are not the anchor, you could still just search for "warning:" like you or your editor have been doing for years. Every operating system comes with an emoji picker, it takes like 2 seconds to use. I'm not sympathetic, tbqh.