Fixed ModuleInfo generation to no longer use the ModuleInfo class' default initializer for types/defaults, it's unsafe as initializers don't necesarily match the "formal" type. There might be explicit padding. Changed -g switch to emit DW_LANG_D debug info, make demangling work with a patched GDB, still more work to do for full support of D's Dwarf extensions. Added getNullValue helper method.

module bug58;
import std.stdio;
void main()
{
    int[16] arr = [1,16,2,15,3,14,4,13,5,12,6,11,7,10,8,9];
    writefln("arr = ",arr);
    arr.sort;
    writefln("arr.sort = ",arr);
    assert(arr == [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]);
}