From e7a3d4b1923ebbb531a8a5ddaa3d85401369160d Mon Sep 17 00:00:00 2001
From: EcoleKeine <Ecole_k@qq.com>
Date: Wed, 14 Mar 2018 00:11:43 +0800
Subject: [PATCH] Some Constructor's signature missing null type
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according to ECMAScript® 2015 Language Specification - http://www.ecma-international.org/ecma-262/6.0

MapConstructor : 23.1.1.1 step6
WeakMapConstructor : 23.2.1.1 step6
SetConstructor : 23.3.1.1 step6
WeakSetConstructor : 23.4.1.1 step6
---
 src/lib/es2015.collection.d.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/lib/es2015.collection.d.ts b/src/lib/es2015.collection.d.ts
index 74759107851..06a3473076f 100644
--- a/src/lib/es2015.collection.d.ts
+++ b/src/lib/es2015.collection.d.ts
@@ -10,7 +10,7 @@ interface Map<K, V> {
 
 interface MapConstructor {
     new (): Map<any, any>;
-    new <K, V>(entries?: ReadonlyArray<[K, V]>): Map<K, V>;
+    new <K, V>(entries?: ReadonlyArray<[K, V]> | null): Map<K, V>;
     readonly prototype: Map<any, any>;
 }
 declare var Map: MapConstructor;
@@ -31,7 +31,7 @@ interface WeakMap<K extends object, V> {
 
 interface WeakMapConstructor {
     new (): WeakMap<object, any>;
-    new <K extends object, V>(entries?: ReadonlyArray<[K, V]>): WeakMap<K, V>;
+    new <K extends object, V>(entries?: ReadonlyArray<[K, V]> | null): WeakMap<K, V>;
     readonly prototype: WeakMap<object, any>;
 }
 declare var WeakMap: WeakMapConstructor;
@@ -47,7 +47,7 @@ interface Set<T> {
 
 interface SetConstructor {
     new (): Set<any>;
-    new <T>(values?: ReadonlyArray<T>): Set<T>;
+    new <T>(values?: ReadonlyArray<T> | null): Set<T>;
     readonly prototype: Set<any>;
 }
 declare var Set: SetConstructor;
@@ -66,7 +66,7 @@ interface WeakSet<T extends object> {
 
 interface WeakSetConstructor {
     new (): WeakSet<object>;
-    new <T extends object>(values?: ReadonlyArray<T>): WeakSet<T>;
+    new <T extends object>(values?: ReadonlyArray<T> | null): WeakSet<T>;
     readonly prototype: WeakSet<object>;
 }
 declare var WeakSet: WeakSetConstructor;