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 tangotests.files1;

//import tango.io.Stdout;
import tango.io.File;

void main()
{
    auto file = new File("files1.output");
    char[] str = "hello world from files1 test\n";
    void[] data = cast(void[])str;
    file.write(str);
}