Hello

This patch addresses PR fortran/104131 on the GCC bug tracker, where an 
ICE would occur if an array or co-array was passed as the event handle 
in the detach clause of a task.

Since the event handle is supposed to be a scalar of type 
omp_event_handle_kind, we can simply reject the event handle during 
parsing if it is any type of array, thereby preventing the situation 
leading to an ICE in the first place.

Okay for trunk?

Thanks

Kwok