fix(compiler): avoid deferred helper name collisions

packages/compiler/test/v060-targets.test.ts

@@ -184,3 +184,19 @@ test("deferred timer state writes commit after the client function returns", asy
   expect(state.value).toBe(2);
   expect(rendered).toBe("2");
 });
+
+test("the deferred commit helper does not shadow an authored commit function", () => {
+  const targets = generateTargets(
+    parse(`component AuthoredCommit {
+      state { value: number = 0 }
+      functions {
+        client function commit(): void { value = 1 }
+        client function save(): void { commit() }
+      }
+      view { <button @click='save()'>{value}</button> }
+    }`),
+  );
+
+  expect(() => new Function(targets.browser.replace(/^export\s+/gm, ""))).not.toThrow();
+  expect(targets.browser).not.toContain("const commit = __wrnexusCommit");
+});