syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"RegPassKind::Integer"}]}
source_snippet:             RegPassKind::Integer { offset_from_start, ty: second_ty },
context_before:             RegPassKind::Float { ty: first_ty, .. },
context_after:         ) => Some(FloatConv::MixedPair {