test/experiment/regression/0000/0028.unit

>>>
bool _hasLibraryDirective(String code) =>
    parseDirectives(code, suppressErrors: true)
        .directives.any((d) => d is LibraryDirective);
<<<
bool _hasLibraryDirective(String code) => parseDirectives(
  code,
  suppressErrors: true,
).directives.any((d) => d is LibraryDirective);