Try adding annotation

Author: slavek-kucera

src/closure-externs/closure-externs.js

@@ -73,6 +73,12 @@ Atomics.notify = function() {};
 Atomics.load = function() {};
 Atomics.store = function() {};
 
+/**
+ * @param {number=} maxWaitMilliseconds
+ * @suppress {duplicate, checkTypes}
+ */
+function LE_ATOMICS_WAITASYNC(i32a, index, value, maxWaitMilliseconds) {};
+
 /**
  * @const
  * @suppress {duplicate, checkTypes}