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 mainargs1;

extern(C) int printf(char*,...);

void main(char[][] args)
{
    foreach(v; args)
    {
        printf("%.*s\n", v.length, v.ptr);
    }
}