[Refactor] sync dispose used in an async dispose should reject, not throw

See tc39/proposal-explicit-resource-management#218

Author: ljharb

.eslintrc

@@ -28,6 +28,7 @@
 				"GetMethod",
 				"IsCallable",
 				"NewDisposeCapability",
+				"NewPromiseCapability",
 				"NormalCompletion",
 				"PromiseResolve",
 				"ThrowCompletion",

aos/GetDisposeMethod.js

@@ -5,6 +5,7 @@ var $TypeError = require('es-errors/type');
 
 var Call = require('es-abstract/2024/Call');
 var GetMethod = require('es-abstract/2024/GetMethod');
+var NewPromiseCapability = require('es-abstract/2024/NewPromiseCapability');
 var Type = require('es-abstract/2024/Type');
 
 var symbolDispose = require('../Symbol.dispose/polyfill')();
@@ -33,7 +34,24 @@ module.exports = function GetDisposeMethod(V, hint) {
 			return function () { // step 1.b.ii.1, 1.b.ii.3
 				// eslint-disable-next-line no-invalid-this
 				var O = this; // step 1.b.ii.1.a
-				Call(method, O); // step // step 1.b.ii.1.b
+				// Call(method, O); // step // step 1.b.ii.1.b
+
+				if (hint === 'ASYNC-DISPOSE') {
+					var promiseCapability = NewPromiseCapability(Promise); // step 1.b.ii.1.b
+					try {
+						Call(method, O); // step 1.b.ii.1.c
+
+						Call(promiseCapability['[[Resolve]]'], undefined, [undefined]); // step 1.b.ii.1.e
+					} catch (e) {
+						promiseCapability['[[Reject]]'](e); // step 1.b.ii.1.d
+					}
+
+					return promiseCapability['[[Promise]]']; // step 1.b.ii.1.f
+				}
+
+				Call(method, O);
+
+				return void undefined;
 			};
 		}
 	}