Sync typeshed (#4267)

ilevkivskyi · web-flow · commit f564776ce60d · 2017-11-19T19:22:26.000+01:00
diff --git a/typeshed b/typeshed
@@ -1 +1 @@
-Subproject commit 821c765991a32f6fb40b0a52029986db45de06e8
+Subproject commit ec2cb8e44fb924f32c5d925942c5818495400b57
