syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"debug!(\"method_callee:"}]}
source_snippet:                 debug!("method_callee: user_ty={:?}", user_ty);
context_before:                 let user_ty = self.user_args_applied_to_res(expr.hir_id, Res::Def(kind, def_id));
context_after:                 (