Work around TS2.4:Collection.toSeq now returns any

sandersn · sandersn · commit 96b81eae9503 · 2017-08-09T09:56:49.000-07:00
This works around the out-of-memory crash in Typescript 2.4 that arises
from the compiler doing too much work when checking the correctness of
`extends` relationships. The Typescript compiler got caught in a deep
recursion when checking `toSeq: Seq&lt;K, V&gt;`, the previous type.
diff --git a/type-definitions/Immutable.d.ts b/type-definitions/Immutable.d.ts
@@ -3599,7 +3599,7 @@ declare module Immutable {
      * Converts this Collection to a Seq of the same kind (indexed,
      * keyed, or set).
      */
-    toSeq(): Seq<K, V>;
+    toSeq(): any;
 
     /**
      * Returns a Seq.Keyed from this Collection where indices are treated as keys.
