message: make sure that declaration is disabled
diff: @@ -123,11 +123,16 @@ export const getTSConfig = _.memoize(getTSConfig_local, (globals, rootDir) => {
  function getTSConfig_local(globals, rootDir: string = '') {
  const configPath = getTSConfigPathFromConfig(globals, rootDir);
  logOnce(`Reading tsconfig file from path ${configPath}`);
  - const skipBabel = getTSJestConfig(globals).skipBabel;
  const config = readCompilerOptions(configPath, rootDir);
  logOnce('Original typescript config before modifications: ', { ...config });
  + // tsc should not emit declaration map when used for tests
  + // disable some options that might break jest
  + config.declaration = false;
  + config.declarationMap = false;
  + config.emitDeclarationOnly = false;
  +
  // ts-jest will map lines numbers properly if inlineSourceMap and
  // inlineSources are set to true. The sourceMap configuration
  // is used to send the sourcemap back to Jest
  