Fixes the failures seen when building DevTools with the DevTools server:
main.dart.js:52160 [zoneGuarded]: TypeError: "2.36.0": type 'String' is not a subtype of type 'bool'
main.dart.js:3555 Uncaught
at Object.i (http://127.0.0.1:9100/main.dart.js:3555:19)
at Object.dW (http://127.0.0.1:9100/main.dart.js:4375:9)
at http://127.0.0.1:9100/main.dart.js:21703:27
at bS4.a (http://127.0.0.1:9100/main.dart.js:5004:63)
at bS4.$2 (http://127.0.0.1:9100/main.dart.js:62979:14)
at bPM.$1 (http://127.0.0.1:9100/main.dart.js:62973:21)
at Object.bRI (http://127.0.0.1:9100/main.dart.js:5300:19)
at apm.<anonymous> (http://127.0.0.1:9100/main.dart.js:183085:10)
at a31.uq (http://127.0.0.1:9100/main.dart.js:64214:12)
at bBs.$0 (http://127.0.0.1:9100/main.dart.js:63540:11)
Fixes the failures seen when building DevTools with the DevTools server: