Check apparent type instead of function type in isUntypedFunctionCall

ahejlsberg · ahejlsberg · commit 5465a5aa72c6 · 2017-12-01T16:48:29.000-08:00
diff --git 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 {

Original file line number	Diff line number	Diff line change
`@@ -17109,7 +17109,7 @@ namespace ts {`
`17109`	`17109`	`function isUntypedFunctionCall(funcType: Type, apparentFuncType: Type, numCallSignatures: number, numConstructSignatures: number) {`
`17110`	`17110`	`// We exclude union types because we may have a union of function types that happen to have no common signatures.`
`17111`	`17111`	`return isTypeAny(funcType) \|\| isTypeAny(apparentFuncType) && funcType.flags & TypeFlags.TypeParameter \|\|`
`17112`		`- !numCallSignatures && !numConstructSignatures && !(funcType.flags & (TypeFlags.Union \| TypeFlags.Never)) && isTypeAssignableTo(funcType, globalFunctionType);`
	`17112`	`+ !numCallSignatures && !numConstructSignatures && !(apparentFuncType.flags & (TypeFlags.Union \| TypeFlags.Never)) && isTypeAssignableTo(funcType, globalFunctionType);`
`17113`	`17113`	`}`
`17114`	`17114`
`17115`	`17115`	`function resolveNewExpression(node: NewExpression, candidatesOutArray: Signature[]): Signature {`