[PATCH] [yaml2obj] ELF Relocations Support

[Sean Silva]

  Excellent points, Simon, I agree with all of them and you've done a very good analysis. Let's get this patch committed. I especially like the use of the `Type:` field as the discriminator; it leads to a very simple implementation.

  I also think you're absolutely right about `obj2yaml`; the requirements of `obj2yaml` will probably influence the final design more than anything.

http://reviews.llvm.org/D3302