message: fix absurd() in Function/core
  Absurd function needs to return never, for TypeScript control flow
  analyser to properly work.
diff: @@ -41,7 +41,7 @@ export interface FunctionN<A extends ReadonlyArray<unknown>, B> {
  /**
  * Will raise if called
  */
  -export function absurd<A>(_: never): A {
  +export function absurd<A>(_: never): never {
  throw new Error("Called `absurd` function which should be uncallable")
  }
  