`span_suggestions` is to provide mutually exclusive suggestions. When it was introduced, we made its behavior be that if a single suggestion is given to it, we present the suggestion inline, otherwise in patch format. Changing this to make all of its uses be verbose, as that is closer in intent of output.
Fixes: https://github.com/rust-lang/rust/issues/148235
This was checking that the blessed stderr was a
subset of the stderr. Additionally, when re-blessing
it would re-bless the subset that matched. So, when
an extra line or comment was added and the line
numbers changed, it would bless it without the line
numbers.
Esteban Küber