From fc4ac8feca32303ba094b6b9647178eded8cdc1f Mon Sep 17 00:00:00 2001
From: navya9singh <navyasingh@microsoft.com>
Date: Fri, 27 Jan 2023 13:44:46 -0800
Subject: [PATCH] Test to repro crash

---
 tests/cases/compiler/getSignatureOfTypeCrash.ts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 tests/cases/compiler/getSignatureOfTypeCrash.ts

diff --git a/tests/cases/compiler/getSignatureOfTypeCrash.ts b/tests/cases/compiler/getSignatureOfTypeCrash.ts
new file mode 100644
index 00000000000..ad5884ed693
--- /dev/null
+++ b/tests/cases/compiler/getSignatureOfTypeCrash.ts
@@ -0,0 +1,17 @@
+declare interface Foo {
+    a(): boolean;
+    b(): void;
+    c(argument: boolean): void;
+    d(argument: number): void;
+}
+
+declare const Foo: Mapped<Foo>;
+type Mapped<T> = {
+  [K in keyof T]: T[K] extends (...args: infer Args) => infer R
+    ? (...args: Args) => R
+    : never;
+};
+
+function foo(key: 'a' | 'b' | 'c' | 'd') {
+  Foo[key]();
+}
\ No newline at end of file