[account42]

I'm unsure if the error message change is actually a good thing. IME the main problem with template error messages is not that they are unreadable but just the sheer amount of them you can get from a simple error which makes it hard to find the root cause among the log spam - making the trace even more verbose will not help that.

[bluGill]

Yeah, the example was trivially short. Only one candidate that didn't match. Last time I had a template error the complete compiler output was too large for my scroll back buffer. (4-5 errors, but each repeated in dozens of places). I really want to see the difference in more realistic cases.