715                         let allow_const = true;  in parse()  localVariable
716                         TypeParamBound::parse_single(input, allow_precise_capture, allow_const)?  in parse()
748             let allow_const = true;  in parse()  localVariable
749             Self::parse_single(input, allow_precise_capture, allow_const)  in parse()
757             allow_const: bool,  in parse_single()
789             if let Some(mut bound) = TraitBound::do_parse(content, allow_const)? {  in parse_single()
801             allow_const: bool,  in parse_multiple()
805                 let bound = Self::parse_single(input, allow_precise_capture, allow_const)?;  in parse_multiple()
816                     || (allow_const && (input.peek(token::Bracket) || input.peek(Token![const]))))  in parse_multiple()
828             let allow_const = false;  in parse()  localVariable
829             Self::do_parse(input, allow_const).map(Option::unwrap)  in parse()
834         fn do_parse(input: ParseStream, allow_const: bool) -> Result<Option<Self>> {  in do_parse()
843                 if !allow_const {  in do_parse()
849                 if !allow_const {  in do_parse()
1026                                 let allow_const = true;  in parse()  localVariable
1030                                     allow_const,  in parse()