JS: Add failing test

Author: asgerf

javascript/ql/test/ApiGraphs/async-await/VerifyAssertions.expected

@@ -0,0 +1,2 @@
+| wrap-async-in-thunk.js:5:25:5:137 | /* def= ... ed() */ | Node not found on this line (but there is one on line wrap-async-in-thunk.js:14). |
+| wrap-async-in-thunk.js:5:25:5:137 | /* def= ... ed() */ | Node not found on this line (but there is one on line wrap-async-in-thunk.js:24). |

javascript/ql/test/ApiGraphs/async-await/wrap-async-in-thunk.js

@@ -0,0 +1,26 @@
+import * as t from "testlib";
+
+async function getData1() {
+    const data = await fetch("https://example.com/content");
+    return data.json(); /* def=moduleImport("testlib").getMember("exports").getMember("foo").getParameter(0).getReturn().getPromised() */
+}
+
+export function use1() {
+    t.foo(() => getData1());
+}
+
+async function getData2() {
+    const data = await fetch("https://example.com/content");
+    return data.json(); /* def=moduleImport("testlib").getMember("exports").getMember("foo").getParameter(0).getReturn().getPromised() */
+}
+
+export function use2() {
+    t.foo(getData2);
+}
+
+export function use3() {
+    t.foo(async () => {
+        const data = await fetch("https://example.com/content");
+        return data.json(); /* def=moduleImport("testlib").getMember("exports").getMember("foo").getParameter(0).getReturn().getPromised() */
+    });
+}