Debug Information Doesn't Always Work

[zaydlang]

Hey! I've been trying to use this program for a project of mine, but I seem to be encountering incorrect debug information when parsing most ELF files on my computer. Some ELF files give proper debug output; some crash with an ArraySliceError at line 82 of debugline/package.d. Some just produce nonsensical output. I haven't quite worked out the common thread between the files that cause crashes yet. Here's an example C program whose elf file crashes elf-d:

int test() {
	return 3;
}

int main() {
	return test();
}

I know this project hasn't been worked on in quite some time, so it's fine if you don't know the fix / don't have the time to fix this. I'm going to be looking into this myself anyway, and if I find the issue, I can make a PR (assuming those are fine). Though, if you have any ideas, I'd love to hear them.