From b9aec285e92b77a3c21468fcb2b7135072671d6f Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Wed, 24 May 2023 13:36:09 -0700
Subject: [PATCH] Return early on intrinsics in couldContainTypeVariables

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

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 547d5fdafd3ab..6cbf8e156974c 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -24004,6 +24004,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
     // we perform type inference (i.e. a type parameter of a generic function). We cache
     // results for union and intersection types for performance reasons.
     function couldContainTypeVariables(type: Type): boolean {
+        if (type.flags & TypeFlags.Intrinsic) return false;
         const objectFlags = getObjectFlags(type);
         if (objectFlags & ObjectFlags.CouldContainTypeVariablesComputed) {
             return !!(objectFlags & ObjectFlags.CouldContainTypeVariables);