From d069da2f66334a4ea65d5ed30831ee46dbde1817 Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Tue, 11 Sep 2018 06:33:15 -0700
Subject: [PATCH] Update getAugmentedPropertiesOfType

---
 src/compiler/checker.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 9c2861c6792..00c258a8eef 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -27758,8 +27758,11 @@ namespace ts {
         function getAugmentedPropertiesOfType(type: Type): Symbol[] {
             type = getApparentType(type);
             const propsByName = createSymbolTable(getPropertiesOfType(type));
-            if (typeHasCallOrConstructSignatures(type)) {
-                forEach(getPropertiesOfType(globalFunctionType), p => {
+            const functionType = getSignaturesOfType(type, SignatureKind.Call).length ? globalCallableFunctionType :
+                getSignaturesOfType(type, SignatureKind.Call).length ? globalNewableFunctionType :
+                undefined;
+            if (functionType) {
+                forEach(getPropertiesOfType(functionType), p => {
                     if (!propsByName.has(p.escapedName)) {
                         propsByName.set(p.escapedName, p);
                     }