feat(nonenull): improve type signature for noneNull

It is now possible to pass a tuple type to noneNull and get back the appropriate tuple type.

BREAKING CHANGE: The type parameter to noneNull has changed to the type of the array itself, not the
type of its elements. The behaviour of the function is unchanged. Callers that specify an explicit
type parameter will need to be updated.

Author: djcsdy

index.ts

@@ -602,8 +602,10 @@ export function concatMapFn<T, U>(
     return array => concatMap(array, f);
 }
 
-export function noneNull<T>(array: ArrayLike<T | null>): ArrayLike<T> | null {
-    return any(array, isNull) ? null : (array as ArrayLike<T>);
+export type NoneNull<T extends ArrayLike<unknown>> = {[K in keyof T]: NonNullable<T[K]>};
+
+export function noneNull<T extends ArrayLike<unknown>>(array: T): NoneNull<T> | null {
+    return any(array, isNull) ? null : (array as NoneNull<T>);
 }
 
 export function scan<T, U>(