syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"Ty::new(tcx,"}]}
source_snippet:         Ty::new(tcx, Placeholder(placeholder))
context_before:     pub fn new_placeholder(tcx: TyCtxt<'tcx>, placeholder: ty::PlaceholderType) -> Ty<'tcx> {
context_after:     }