[patch] Convert BitcodeReader to use error_code

[Chris Lattner]

On Oct 31, 2013, at 7:28 PM, Rafael Espíndola <rafael.espindola at gmail.com> wrote:

> In order to use create a ObjectFile implementation for IR objects I
> need to convert the error handling of IR reading to that of ObjectFile
> (error_code).
> 
> The attached patch converts BitcodeReader.

Awesome!

I think you should make the error codes a little more coarse grained.  There isn't very much actionable based on the error codes anyway, so you can probably limit them down to 5 or 6 different codes.  Anyone trying to debug a bitcode reading problem will have to step through the code to figure out what is really wrong anyway.

Thanks for working on this Rafael!

-Chris