syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// errors are not intended to be used for unit tests.)
context_before: /// expression form above, then that emits an error as well, but those
context_after: fn sanity_check_via_rustc_peek<'tcx, A>(tcx: TyCtxt<'tcx>, mut cursor: ResultsCursor<'_, 'tcx, A>)