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 bug30;

void main()
{
    int[] a = new int[4];
    {a[0] = 1;
    a[1] = 2;
    a[2] = 3;
    a[3] = 4;}
    int[] b = new int[4];
    {b[0] = 1;
    b[1] = 2;
    b[2] = 3;
    b[3] = 4;}
    int[] c = new int[4];
    {c[0] = 1;
    c[1] = 2;
    c[2] = 4;
    c[3] = 3;}
    {assert(a == b);}
    {assert(a != c);}
}