[sv-bc] Tf ansi nonansi declaration issue.

I've prepeared couple of tests showing the issues related to tf declaration.
 
IMHO the LRM doesn't explicitly said what is allwed and what not- all
possible cases and details are in attachment but the problem may be
illustrated by case like below:
 
 
function void f1(input b);
         reg [3:0] b;  //mixture of ANSI and non ANSI like declaration of tf
- imho this should be dupllicate identifier 
    begin
        $display("%b", b);
    end
endfunction
 
Is this known problem? is there mantis for that? - or maybe I've missed
descripition of such cases in LRM?
 
DANiel

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