[PATCH] Fix MCDataAtom never calling remap when adding data.

[Rafael Espíndola]

> I've attached a patch to do this and updated a test to check that it's correctly producing a text atom following the data atom. Would you like this as a combined patch?
>
> There's also an issue with llvm-objdump -d not displaying data and instead giving a warning and skipping the bytes, but I'll prepare a separate patch for that.
>
> If these look good, will you commit them for me, I don't have access.

I will commit the original one and review this one in a sec.

Cheers,
Rafael