Function Null for variant in Delphi 2010

Where is this function in Delphi 2010?

function Null: Variant;
begin
  _VarNull(TVarData(Result));
end;

in 开发者_JAVA技巧Delphi 6 it was in Variants.

In D2010 it's still in Variants, looking exactly as you described. It's defined on line 112 of Variants.pas.