JSTests/test262/test/language/literals/regexp/named-groups/invalid-numeric-groupspecifier.js

// Copyright 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
description: GroupSpecifier must be identifier-like.
esid: prod-GroupSpecifier
negative:
  phase: parse
  type: SyntaxError
features: [regexp-named-groups]
---*/

$DONOTEVALUATE();

/(?<42a>a)/;