syntax_data: {"ast_node_type":"variable","tokens":[{"end":71,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if let ty::Adt(adt_def, _) = self.thir[lhs].ty.kind() {
context_before:             ExprKind::Field { lhs, .. } => {
context_after:                     if (Bound::Unbounded, Bound::Unbounded)