jscript: Support VT_UI8 in variant_to_jsval.

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/jscript/jsutils.c

@@ -306,6 +306,13 @@ HRESULT variant_to_jsval(VARIANT *var, jsval_t *r)
     case VT_UI4:
         *r = jsval_number(V_UI4(var));
         return S_OK;
+    case VT_UI8:
+        /*
+         * Native doesn't support VT_UI8 here, but it's needed for IE9+ APIs
+         * (native IE9 doesn't use jscript.dll for JavaScript).
+         */
+        *r = jsval_number(V_UI8(var));
+        return S_OK;
     case VT_R4:
         *r = jsval_number(V_R4(var));
         return S_OK;