add queueMicrotask polyfill

Author: KurtGokhan

Resources/ReactUnity/polyfills/queue-microtask.js

@@ -0,0 +1,9 @@
+(function () {
+  if (global.queueMicrotask) return;
+  var promise;
+  global.queueMicrotask = function queueMicrotask(cb) {
+    return (promise || (promise = Promise.resolve()))
+      .then(cb)
+      .catch(err => setTimeout(() => { throw err }, 0));
+  }
+})();

Resources/ReactUnity/polyfills/queue-microtask.js.meta

@@ -16,5 +16,6 @@ public enum EngineCapabilities
         Navigator = 128,
         Encoding = 256,
         AbortController = 512,
+        QueueMicrotask = 1024,
     }
 }

Runtime/Scripting/EngineCapabilities.cs

@@ -28,6 +28,7 @@ public class QuickJSEngine : IJavaScriptEngine
             | EngineCapabilities.Console
             | EngineCapabilities.Base64
             | EngineCapabilities.AbortController
+            | EngineCapabilities.QueueMicrotask
 #endif
             | EngineCapabilities.None;
 

Runtime/Scripting/QuickJS/QuickJSEngine.cs

@@ -202,6 +202,8 @@ void CreateConsole(IJavaScriptEngine engine)
         static void CreatePolyfills(IJavaScriptEngine engine)
         {
             // Load essential polyfills
+            if (!engine.Capabilities.HasFlag(EngineCapabilities.QueueMicrotask))
+                engine.Execute(ResourcesHelper.GetPolyfill("queue-microtask"), "ReactUnity/polyfills/queue-microtask");
 
             if (!engine.Capabilities.HasFlag(EngineCapabilities.Base64))
                 engine.Execute(ResourcesHelper.GetPolyfill("base64"), "ReactUnity/polyfills/base64");