Replace SpiderMonkey-specific parseModule in async-functions/async-contains-unicode-escape.js and fix a test bug

test/staging/sm/async-functions/async-contains-unicode-escape-module.js

@@ -0,0 +1,17 @@
+// Copyright (C) 2024 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: |
+  async/await containing escapes
+esid: pending
+negative:
+  phase: parse
+  type: SyntaxError
+flags:
+  - module
+---*/
+
+$DONOTEVALUATE();
+
+export default \u0061sync function f() {}

test/staging/sm/async-functions/async-contains-unicode-escape.js

@@ -2,22 +2,15 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-flags:
-  - noStrict
 description: |
   async/await containing escapes
 esid: pending
 ---*/
 
-// Using "eval" as the argument name is fugly, but it means evals below are
-// *direct* evals, and so their effects in the unescaped case won't extend
-// past each separate |test| call (as would happen if we used a different name
-// that made each eval into an indirect eval, affecting code in the global
-// scope).
-function test(code, eval)
+function test(code)
 {
   var unescaped = code.replace("###", "async");
-  var escaped = code.replace("###", "\\u0061");
+  var escaped = code.replace("###", "\\u0061sync");
 
   assert.throws(SyntaxError, () => eval(escaped));
   eval(unescaped);
@@ -34,9 +27,6 @@ test("var x = ### (y) => {}", eval);
 test("({ ### x() {} })", eval);
 test("var x = ### function f() {}", eval);
 
-if (typeof parseModule === "function")
-  test("export default ### function f() {}", parseModule);
-
 assert.throws(SyntaxError, () => eval("async await => 1;"));
 assert.throws(SyntaxError, () => eval("async aw\\u0061it => 1;"));