Update test harness to call new methods for getting errors for a file.
Update test harness to call new methods for getting errors for a file.

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