Add debug target for test harness debugging
Add debug target for test harness debugging

mbebenita/shumway.ts,hippich/typescript,mbrowne/typescript-dci,mbrowne/typescript-dci,popravich/typescript,popravich/typescript,fdecampredon/jsx-typescript-old-version,fdecampredon/jsx-typescript-old-version,hippich/typescript,mbebenita/shumway.ts,mbebenita/shumway.ts,mbrowne/typescript-dci,mbrowne/typescript-dci,popravich/typescript,fdecampredon/jsx-typescript-old-version,hippich/typescript