library;
//
// Problems in library:
//
// pkg/front_end/testcases/regress/issue_31180.dart:6:16: Error: Expected an identifier, but got '['.
//   return null?.[1];
//                ^
//
import self as self;

static method bad() → dynamic {
  return invalid-expression "pkg/front_end/testcases/regress/issue_31180.dart:6:16: Error: Expected an identifier, but got '['.
  return null?.[1];
               ^";
}
static method main() → dynamic {}