From 5465a5aa72c68ab4a680a9001b42d109d19955cf Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Fri, 1 Dec 2017 16:48:29 -0800
Subject: [PATCH] Check apparent type instead of function type in
 isUntypedFunctionCall

---
 src/compiler/checker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 0b8ba29a710..849dec8eaad 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -17109,7 +17109,7 @@ namespace ts {
         function isUntypedFunctionCall(funcType: Type, apparentFuncType: Type, numCallSignatures: number, numConstructSignatures: number) {
             // We exclude union types because we may have a union of function types that happen to have no common signatures.
             return isTypeAny(funcType) || isTypeAny(apparentFuncType) && funcType.flags & TypeFlags.TypeParameter ||
-                !numCallSignatures && !numConstructSignatures && !(funcType.flags & (TypeFlags.Union | TypeFlags.Never)) && isTypeAssignableTo(funcType, globalFunctionType);
+                !numCallSignatures && !numConstructSignatures && !(apparentFuncType.flags & (TypeFlags.Union | TypeFlags.Never)) && isTypeAssignableTo(funcType, globalFunctionType);
         }
 
         function resolveNewExpression(node: NewExpression, candidatesOutArray: Signature[]): Signature {