message: test(aio): add test for escaped newline in CodeComponent
diff: @@ -107,10 +107,10 @@ describe('CodeComponent', () => {
  it('should remove common indentation from the code before rendering', () => {
  hostComponent.linenums = false;
  - hostComponent.code = ' abc\n def\n ghi\n\n jkl\n';
  + hostComponent.code = ' abc\n let x = text.split(\'\\n\');\n ghi\n\n jkl\n';
  fixture.detectChanges();
  const codeContent = codeComponentDe.nativeElement.querySelector('code').innerText;
  - expect(codeContent).toEqual('abc\n def\nghi\n\njkl');
  + expect(codeContent).toEqual('abc\n let x = text.split(\'\\n\');\nghi\n\njkl');
  });
  it('should trim whitespace from the code before rendering', () => {
  