syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"unsafe"}]}
source_snippet:         unsafe { std::mem::transmute::<Ty<'tcx>, Ty<'_>>(Ty::new_error(tcx, guar)) }
context_before:         // FIXME: Represent the above fact in the trait system somehow.
context_after:     }