syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"ExprKind::Field"}]}
source_snippet:             ExprKind::Field { lhs, .. } => {
context_before:         match expr.kind {
context_after:                 if let ty::Adt(adt_def, _) = self.thir[lhs].ty.kind() {