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 bug51;
const ubyte[3] arr1 = 1;
const ubyte[3] arr2 = [1];
const ubyte[3] arr3 = [1:1];
void main()
{
    assert(arr1 == [cast(ubyte)1,1,1][]);
    assert(arr2 == [cast(ubyte)1,0,0][]);
    assert(arr3 == [cast(ubyte)0,1,0][]);
}