syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"recurse_build(tcx,"}]}
source_snippet:                 recurse_build(tcx, body, arg, root_span)?
context_before:             if let ExprKind::Deref { arg } = arg_node.kind {
context_after:             } else {