syntax_data: {"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"return"}]}
source_snippet:             return Err(SelectionError::Unimplemented);
context_before:         let Some(assume) = rustc_transmute::Assume::from_const(self.infcx.tcx, assume) else {
context_after:         };