message: Update Number#fromString to v9.255
  Closes
diff: @@ -201,10 +201,10 @@ interface NumberConstructor {
  /**
  * Attempt to create a number from a user-provided string.
  - * @param str - The string.
  + * @param n - The value to convert; typically a string, but may already be a number.
  * @returns The number that the string represents, or NaN if no number could be determined.
  */
  - fromString(str: string): number;
  + fromString(str: string | number): number;
  }
  interface ArrayConstructor {
  