From 552f1d85c9f70be5d16efe8c3096f04bdb63eee5 Mon Sep 17 00:00:00 2001
From: Mohamed Hegazy <mhegazy@microsoft.com>
Date: Wed, 19 Apr 2017 13:55:13 -0700
Subject: [PATCH] Revert changes to WeakSet defitions adding `object`
 constraint This reverts the changes to WeakSet done in
 https://github.com/Microsoft/TypeScript/pull/15124 to avoid breaks in
 existing @types packages like @types/lodash

---
 src/lib/es2015.collection.d.ts       | 2 +-
 src/lib/es2015.iterable.d.ts         | 2 +-
 src/lib/es2015.symbol.wellknown.d.ts | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lib/es2015.collection.d.ts b/src/lib/es2015.collection.d.ts
index 038ed1ed58c..9b35fcbeffb 100644
--- a/src/lib/es2015.collection.d.ts
+++ b/src/lib/es2015.collection.d.ts
@@ -58,7 +58,7 @@ interface ReadonlySet<T> {
     readonly size: number;
 }
 
-interface WeakSet<T extends object> {
+interface WeakSet<T> {
     add(value: T): this;
     delete(value: T): boolean;
     has(value: T): boolean;
diff --git a/src/lib/es2015.iterable.d.ts b/src/lib/es2015.iterable.d.ts
index d242d14b663..2f8a1efba76 100644
--- a/src/lib/es2015.iterable.d.ts
+++ b/src/lib/es2015.iterable.d.ts
@@ -118,7 +118,7 @@ interface SetConstructor {
     new <T>(iterable: Iterable<T>): Set<T>;
 }
 
-interface WeakSet<T extends object> { }
+interface WeakSet<T> { }
 
 interface WeakSetConstructor {
     new <T extends object>(iterable: Iterable<T>): WeakSet<T>;
diff --git a/src/lib/es2015.symbol.wellknown.d.ts b/src/lib/es2015.symbol.wellknown.d.ts
index 3d030f37d49..578cf0acbc2 100644
--- a/src/lib/es2015.symbol.wellknown.d.ts
+++ b/src/lib/es2015.symbol.wellknown.d.ts
@@ -118,7 +118,7 @@ interface Set<T> {
     readonly [Symbol.toStringTag]: "Set";
 }
 
-interface WeakSet<T extends object> {
+interface WeakSet<T> {
     readonly [Symbol.toStringTag]: "WeakSet";
 }