Show errors also in unreachable top-level code; fixes #292
Show errors also in unreachable top-level code; fixes #292

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