syntax_data: {"ast_node_type":"variable","tokens":[{"end":54,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if let Some(s) = &mut self.rust_2024_migration
context_before:         let mut opt_old_mode_span = None;
context_after:             && adjustments.iter().any(|adjust| adjust.kind == PatAdjust::BuiltinDeref)