Fix name generation scoping (#58418)

src/testRunner/unittests/evaluation/asyncArrow.ts

@@ -17,4 +17,29 @@ describe("unittests:: evaluation:: asyncArrowEvaluation", () => {
         await result.main();
         assert.instanceOf(result.output[0].a(), result.A);
     });
+
+    // https://github.com/microsoft/TypeScript/issues/57897
+    it("Class alias (es5)", async () => {
+        const result = evaluator.evaluateTypeScript(`
+        class X {
+            public static a = async (someVar: boolean = true) => {
+                return await X.b();
+            };
+
+            public static b = async () => {
+                return "GOOD";
+            };
+        }
+
+        export async function main() {
+            try {
+                return await X.a();
+            }
+            catch (e) {
+                return "BAD";
+            }
+        }`);
+        const output = await result.main();
+        assert.equal(output, "GOOD");
+    });
 });