[llvm] r257697 - Convert a few assert failures into proper errors.

[Rafael Espíndola via llvm-commits]

On 13 January 2016 at 18:42, JF Bastien <jfb at google.com> wrote:
> FYI this broke the WebAssembly build, fixed in r257709.

Really sorry about that. I had experimental backends enabled in the
past, but disable during some other breakage :-(

Could we graduate web assembly out of experimental? I understand that
the project itself is an experiment, but from the llvm point of view
it should be fairly reliable: builds and passes tests on every bot.

Cheers,
Rafael