code: function validateVarName(regex, name, strict) {
  
    if (strict) {
      // These are only an issue in strict mode.
      if (name === 'eval') { return false; }
      if (name === 'arguments') { return false; }
    }
  
    var result = regex.test(name);
    result = result && validateCommonReservedWords(name);
    return result;
  }
docs: Validates a variable name using the regular expression provided.  Also uses
  reserved words common to ES5 and ES2015.
  
  @param regex {RegExp} A regular expression used to validate name.
  @param name {String} The variable name to check.
  @param [strict] If this is true, strict mode checking is on.
  @return true if the name is valid, or false if it is not.
  @private