syntax_data: {"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
source_snippet: impl<'tcx> TailCallCkVisitor<'_, 'tcx> {
context_after:     fn check_tail_call(&mut self, call: &Expr<'_>, expr: &Expr<'_>) {