Small cleanup

1. Fix Array<> lint
2. Use {} instead of unknown to continue targetting 2.9.
3. Update tests -- still no way to get anything but `any` from `call`.

types/bluebird/bluebird-tests.ts

@@ -553,7 +553,7 @@ bool = fooProm.isResolved();
 strProm = fooProm.call("foo");
 strProm = fooProm.call("foo", 1, 2, 3);
 
-// $ExpectType Bluebird<never>
+// $ExpectType Bluebird<any>
 quxProm.call("qux");
 
 strProm = fooProm.get("foo").then(method => method());

types/bluebird/index.d.ts

@@ -560,12 +560,12 @@ declare class Bluebird<R> implements PromiseLike<R>, Bluebird.Inspection<R> {
   /**
    * Like calling `.then`, but the fulfillment value or rejection reason is assumed to be an array, which is flattened to the formal parameters of the handlers.
    */
-  spread<U, Q>(this: Bluebird<R & Iterable<Q>>, fulfilledHandler: (...values: Array<Q>) => Resolvable<U>): Bluebird<U>;
+  spread<U, Q>(this: Bluebird<R & Iterable<Q>>, fulfilledHandler: (...values: Q[]) => Resolvable<U>): Bluebird<U>;
 
   /**
    * Same as calling `Promise.all(thisPromise)`. With the exception that if this promise is bound to a value, the returned promise is bound to that value too.
    */
-  all(this: Bluebird<Iterable<unknown>>): Bluebird<R>;
+  all(this: Bluebird<Iterable<{}>>): Bluebird<R>;
 
   /**
    * Same as calling `Promise.all(thisPromise)`. With the exception that if this promise is bound to a value, the returned promise is bound to that value too.
@@ -592,7 +592,7 @@ declare class Bluebird<R> implements PromiseLike<R>, Bluebird.Inspection<R> {
    * Same as calling `Promise.some(thisPromise)`. With the exception that if this promise is bound to a value, the returned promise is bound to that value too.
    * Same as calling `Promise.some(thisPromise)`. With the exception that if this promise is bound to a value, the returned promise is bound to that value too.
    */
-  some(this: Bluebird<Iterable<unknown>>, count: number): Bluebird<R>;
+  some(this: Bluebird<Iterable<{}>>, count: number): Bluebird<R>;
 
   /**
    * Same as calling `Promise.some(thisPromise)`. With the exception that if this promise is bound to a value, the returned promise is bound to that value too.