syntax_data: {"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"@call(mir_field,"}]}
source_snippet:             @call(mir_field, args) => {
context_before:         let (parent, proj) = parse_by_kind!(self, expr_id, expr, "place",
context_after:                 let (parent, place_ty) = self.parse_place_inner(args[0])?;