Tests for await using syntax

changelog_unreleased/javascript/13752.md

@@ -1,6 +1,8 @@
-#### Add support for "Explicit Resource Management" proposal (#13752 by @fisker)
+#### Add support for "Explicit Resource Management" proposal (#13752 by @fisker, #14862 by @sosukesuzuki)
 
-The Stage 2 proposal ["Explicit Resource Management"](https://github.com/tc39/proposal-explicit-resource-management/) is now supported via Babel 7.20.0. Also keep in mind our [policy on non-standardized syntax](https://prettier.io/docs/en/rationale.html#disclaimer-about-non-standard-syntax) before using this proposed syntax feature with Prettier.
+The Stage 2 proposal ["Explicit Resource Management"](https://github.com/tc39/proposal-explicit-resource-management/) is now supported via Babel [7.20.0](https://babeljs.io/blog/2022/10/27/7.20.0) and [7.22.0](https://babeljs.io/blog/2023/05/26/7.22.0).
+
+Also keep in mind our [policy on non-standardized syntax](https://prettier.io/docs/en/rationale.html#disclaimer-about-non-standard-syntax) before using this proposed syntax feature with Prettier.
 
 <!-- prettier-ignore -->
 ```js
@@ -9,4 +11,9 @@ The Stage 2 proposal ["Explicit Resource Management"](https://github.com/tc39/pr
   using obj = g(); // block-scoped declaration
   const r = obj.next();
 } // calls finally blocks in `g`
+
+{
+  await using obj = g(); // block-scoped declaration
+  const r = obj.next();
+} // calls finally blocks in `g`
 ```

tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap

@@ -860,6 +860,10 @@ function * g() {
   const r = obj.next();
 } // calls finally blocks in \`g\`
 
+{
+  await using obj = g();
+}
+
 =====================================output=====================================
 function* g() {
   using handle = acquireFileHandle(); // block-scoped critical resource
@@ -870,6 +874,10 @@ function* g() {
   const r = obj.next();
 } // calls finally blocks in \`g\`
 
+{
+  await using obj = g();
+}
+
 ================================================================================
 `;
 

tests/format/js/babel-plugins/explicit-resource-management.js

@@ -6,3 +6,7 @@ function * g() {
   using obj = g(); // block-scoped declaration
   const r = obj.next();
 } // calls finally blocks in `g`
+
+{
+  await using obj = g();
+}