Enable strict mode testing for sm/AsyncGenerators

test/staging/sm/AsyncGenerators/async-generator-declaration-in-modules.js

@@ -2,12 +2,11 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-flags:
-  - noStrict
 description: |
   pending
 esid: pending
 ---*/
+
 async function* f() {
     return "success";
 }

test/staging/sm/AsyncGenerators/create-function-parse-before-getprototype.js

@@ -2,12 +2,11 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-flags:
-  - noStrict
 description: |
   pending
 esid: pending
 ---*/
+
 var getProtoCalled = false;
 
 var newTarget = Object.defineProperty(function(){}.bind(), "prototype", {
@@ -24,4 +23,3 @@ assert.throws(SyntaxError, () => {
 });
 
 assert.sameValue(getProtoCalled, false);
-

test/staging/sm/AsyncGenerators/for-await-bad-syntax.js

@@ -8,6 +8,7 @@ description: |
   pending
 esid: pending
 ---*/
+
 var AsyncGenerator = async function*(){}.constructor;
 
 function assertSyntaxError(code) {
@@ -29,4 +30,3 @@ for (var decl of ["", "var", "let", "const"]) {
         assertSyntaxError(`for await (${decl} ${head} in null) ;`);
     }
 }
-