[tests] add

closes #7536

tests/unit/src/unit/issues/Issue7536.hx

@@ -0,0 +1,9 @@
+package unit.issues;
+
+class Issue7536 extends unit.Test {
+	function test() {
+      var s:String = null;
+      var url:Dynamic = { query: s }
+      t(url.query == null);
+	}
+}