Changed the handling of variadic intrinsics a bit. Removed the -fp80 option and made real be 80bit floats on X86, this is what the D spec really says it should be and fixes a bunch of issues. Changed the handling of parameter attributes to a bit more generalized approach. Added sext/zext attributes for byte/short/ubyte/ushort parameters, fixes #60 . Parameter attribs now properly set for intrinsic calls if necessary. Made the tango.math.Math patch less intrusive. Fixed/added some mini tests.

module stdiotest2;
import std.stdio;
void main()
{
    int[4] v = [1,2,3,4];
    {
        writefln("%s", v);
        {
            int[] dv = v;
            {writefln("%s", dv);}
        }
    }

    {
        writefln(v);
        {
            //int[] dv = v;
            //{writefln(dv);}
        }
    }
    //writefln(1,2,3,4.56,"hello",v);
}