function resolveAltShiftedAlias(keyName) {
  return AltShiftedKeysDictionary[keyName] || [ keyName ];
}
Returns the corresponding symbol or character for a particular key, when it is
pressed with the alt and shift keys also held down
@param {NormalizedKeyName} keyName Name of the key
@returns {ReactKeyName[]} Symbol or character for the key, when it is pressed with the
         alt and shit keys