user32/tests: Flush pending events before testing menu messages.

[Dmitry Timoshkov]

This patch should fix the problem reported in the bug 35609.
---
 dlls/user32/tests/msg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/user32/tests/msg.c b/dlls/user32/tests/msg.c
index 8cc431c..20248dd 100644
--- a/dlls/user32/tests/msg.c
+++ b/dlls/user32/tests/msg.c
@@ -12591,6 +12591,7 @@ static void test_menu_messages(void)
 
     SetMenu(hwnd, hmenu);
     SetForegroundWindow( hwnd );
+    flush_events();
 
     set_menu_style(hmenu, MNS_NOTIFYBYPOS);
     style = get_menu_style(hmenu);
-- 
1.8.5.5