support for hex formatter enumval litterals (#2270)
support for hex formatter enumval litterals (#2270)

* support for hex formatter enumval litterlas

* fix regex

switchinnovations/pxt,playi/pxt,switch-education/pxt,Microsoft/pxt,switchinnovations/pxt,playi/pxt,Microsoft/pxt,playi/pxt,playi/pxt,Microsoft/pxt,switch-education/pxt,Microsoft/pxt,switchinnovations/pxt,Microsoft/pxt,switch-education/pxt,switchinnovations/pxt,switch-education/pxt,switch-education/pxt