text: // Copyright (C) 2016 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  /*---
  esid: sec-pattern-semantics
  es6id: 21.2.2
  description: >
      NonEmptyClassRangesNoDash production cannot specify a multi-character set
      ("A" parameter)
  info: |
      The production
      NonemptyClassRangesNoDash::ClassAtomNoDash-ClassAtomClassRanges evaluates
      as follows:
  
      1. Evaluate ClassAtomNoDash to obtain a CharSet A.
      2. Evaluate ClassAtom to obtain a CharSet B.
      3. Evaluate ClassRanges to obtain a CharSet C.
      4. Call CharacterRange(A, B) and let D be the resulting CharSet.
  
      21.2.2.15.1 Runtime Semantics: CharacterRange Abstract Operation
  
      1. If A does not contain exactly one character or B does not contain
         exactly one character, throw a SyntaxError exception.
  
      The `u` flag precludes the Annex B extension that enables this pattern.
  negative:
    phase: parse
    type: SyntaxError
  ---*/
  
  // throw "Test262: This statement should not be evaluated.";
  
  /[\d-a]/u;
  