syntax_data: {"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"(RangeEnd::Included,"}]}
source_snippet:             (RangeEnd::Included, Some(Ordering::Equal)) if lo.is_finite() && hi.is_finite() => {
context_before:             // `x..=y` where `x == y` and `x` and `y` are finite.
context_after:                 kind = PatKind::Constant { value: lo.as_finite().unwrap() };