syntax_data: {"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"adjust_span(&mut"}]}
source_snippet:                 adjust_span(&mut expr);
context_before:             Adjust::Deref(None) => {
context_after:                 ExprKind::Deref { arg: self.thir.exprs.push(expr) }