syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":")"}]}
source_snippet: ) -> Result<&'tcx ImplSource<'tcx, ()>, CodegenObligationError> {
context_before:     key: PseudoCanonicalInput<'tcx, ty::TraitRef<'tcx>>,
context_after:     let PseudoCanonicalInput { typing_env, value: trait_ref } = key;