tools: add lint rule for [await] using in core

Signed-off-by: Renegade334 <contact.9a5d6388@renegade334.me.uk>

Author: Renegade334

lib/eslint.config_partial.mjs

@@ -46,6 +46,11 @@ const noRestrictedSyntax = [
     selector: "CallExpression:matches([callee.type='Identifier'][callee.name='FunctionPrototypeApply'], [callee.type='MemberExpression'][callee.property.type='Identifier'][callee.property.name='apply'][arguments.length=2])",
     message: 'Use `ReflectApply` instead of %Function.prototype.apply%',
   },
+  // TODO: remove once js_explicit_resource_management is unflagged in V8
+  {
+    selector: "VariableDeclaration:matches([kind='using'], [kind='await using'])",
+    message: '`[await] using` statements cannot yet be used in /lib, call the disposer in a `try ... finally` block instead.',
+  },
 ];
 
 export default [