rustc_trait_selection::error_reporting::infer::nice_region_error

Function find_param_with_region

Source 
pub fn find_param_with_region<'tcx>(
    tcx: TyCtxt<'tcx>,
    generic_param_scope: LocalDefId,
    anon_region: Region<'tcx>,
    replace_region: Region<'tcx>,
) -> Option<AnonymousParamInfo<'tcx>>