[omniORB] is this an omniidl bug or feature?

[JiangWei]

tao_idl, mico_idl and orbit_idl say OK but omniidl

// x.idl
typedef long L;

struct test
{
        L _l;
};


[jw at dell idl]$ omniidl x.idl
omniidl: Warning: No back-ends specified; checking IDL for validity
x.idl:5: Instance identifier 'l' clashes with use of identifier 'L'
x.idl:5:  ('L' used here)
omniidl: 1 error.