syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if (sp_lhs.lo() <= sp_rhs.lo()) && (sp_lhs.hi() <= sp_rhs.lo()) {
context_before:         // Ensure these follow the expected order and that we don't overlap.
context_after:             Some(sp_lhs.to(sp_rhs))