make integration_tests pass for node releases and master #4062

Do you want to request a feature or report a bug?
bug
What is the current behavior?
Two Jest integration tests do not pass for node official releases and current master:
integration_tests/__tests__/show_config.test.js and
integration_tests/__tests__/stack_trace_no_captureStackTrace.js.

If the current behavior is a bug, please provide the steps to reproduce and either a repl.it demo through https://repl.it/languages/jest or a minimal repository on GitHub that we can yarn install and yarn test.
set PATH to node
yarn (or yarn --ignore-engines for local build) and yarn test from within the Jest dir
What is the expected behavior?
Tests passing
Please provide your exact Jest configuration and mention your Jest, node, yarn/npm version and operating system.
Jest: master e9a6f71
node: master c3cb0ed (same happens for release branches, tested for 6+)
yarn: 0.27.5
macOS Sierra

What fixed the problem for me:

• update snapshot for show_config.test.js
• replace
  expect(stderr).toMatch(/\s+at\sJestAssertionError\s.*/);
  with the call
  expect(stderr).toMatch( /\s+at\s(?:.+?)\s\(__tests__\/runtime_error.test\.js/, );
  in stack_trace_no_captureStackTrace.js. RunJest does not
  seem to return at JestAssertionError string, afaiu (might be wrong :)).