Add test

Author: Benjamin Lichtman

src/testRunner/unittests/convertToAsyncFunction.ts

@@ -421,6 +421,15 @@ function [#|f|](): Promise<void> {
     return fetch('https://typescriptlang.org').then( () => console.log("almost done") ).then( () => console.log("done") );
 }`
         );
+        _testConvertToAsyncFunction("convertToAsyncFunction_IgnoreArgs4", `
+function [#|f|]() {
+    return fetch('https://typescriptlang.org').then(res);
+}
+function res(){
+    console.log("done");
+}`
+        );
+
         _testConvertToAsyncFunction("convertToAsyncFunction_Method", `
 class Parser {
     [#|f|]():Promise<void> {

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_IgnoreArgs4.js

@@ -0,0 +1,17 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(res);
+}
+function res(){
+    console.log("done");
+}
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const result_1 = await fetch('https://typescriptlang.org');
+    return res(result_1);
+}
+function res(){
+    console.log("done");
+}

tests/baselines/reference/convertToAsyncFunction/convertToAsyncFunction_IgnoreArgs4.ts

@@ -0,0 +1,17 @@
+// ==ORIGINAL==
+
+function /*[#|*/f/*|]*/() {
+    return fetch('https://typescriptlang.org').then(res);
+}
+function res(){
+    console.log("done");
+}
+// ==ASYNC FUNCTION::Convert to async function==
+
+async function f() {
+    const result_1 = await fetch('https://typescriptlang.org');
+    return res(result_1);
+}
+function res(){
+    console.log("done");
+}