An API returning a Promise should not throw an exceptions [overload version]

Source/bindings/tests/idls/core/TestInterface.idl

Index: Source/bindings/tests/idls/core/TestInterface.idl
diff --git a/Source/bindings/tests/idls/core/TestInterface.idl b/Source/bindings/tests/idls/core/TestInterface.idl
index 8a6fd469a43abe674e6f4fb9ef661bc45c5de1e9..a54e1b738e16d0bbb96816baf21c046743ad6525 100644
--- a/Source/bindings/tests/idls/core/TestInterface.idl
+++ b/Source/bindings/tests/idls/core/TestInterface.idl
@@ -92,6 +92,10 @@
     void voidMethodPartialOverload();
     void voidMethodPartialOverload(double doubleArg);
     static void staticVoidMethodPartialOverload();
+
+    Promise promiseMethodPartialOverload();
+    Promise promiseMethodPartialOverload(Window window);
+    static Promise staticPromiseMethodPartialOverload();
 };
 
 TestInterface implements TestImplements;