library;
import self as self;
import "dart:core" as core;

static method bad() → dynamic {
  return const core::_ConstantExpressionError::•()._throw(new core::_CompileTimeError::•("pkg/front_end/testcases/regress/issue_31180.dart:6:16: Error: Expected an identifier, but got '['.\n  return null?.[1];\n               ^"));
}
static method main() → dynamic {}