Ensure that the Introspect method will not be considered a signal

in the automatically added Introspectable interface.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

src/tools/dbusxml2qt3/main.cpp

@@ -311,6 +311,7 @@ int main(int argc, char** argv)
 
             Method method;
             method.name = "Introspect";
+            method.type = Method::_Method;
             method.noReply = false;
             method.async = false;