message: Fix active parameter reference
diff: @@ -1840,7 +1840,7 @@ export interface SignatureInformation {
  /**
  * The index of the active parameter.
  *
  - * If provided, this is used in place of `SignatureHelp.activeSignature`.
  + * If provided, this is used in place of `SignatureHelp.activeParameter`.
  *
  * @since 3.16.0 - proposed state
  */
  