fn suggest_insertion(
cx: &DocContext<'_>,
item: &Item,
dox: &str,
lint: &mut Diag<'_, ()>,
insert_index: usize,
suggestion: char,
message: &'static str,
)
Expand description
Try to emit a span suggestion and fall back to help messages if we can’t find a suitable span.
This helps finding backticks in huge macro-generated docs.