Fixing assertion error when compiling not blocks
Fixing assertion error when compiling not blocks

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