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 mini.foreach8;

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

int main(){
    dchar[] array="\u2260";
    printf("array[0] == %u\n", array[0]);
    int test=0;
    int count=0;
    assert(count==0);
    foreach(int index, char obj; array){
        printf("%d\n", obj);
        test+=obj;
        count++;
    }
    assert(count==3);
    assert(test==0x20b);
    return 0;
}