See this error message here:

https://godbolt.org/z/x4WPxvzar

We should probably find a way to say recognize we mean 'none of the builtin candidates work' and say something like "all of the builtin candidate operator==s don't work, because operand can't convert to any of the following types:" (or similar) instead of printing everything.

The result as-is, is that we mention 'float' for no good reason.