[llvm] r225053 - Add an ArrayRef upcasting constructor from ArrayRef<U*> -> ArrayRef<T*> where T is a base of U.

[Chandler Carruth]

On Thu, Jan 1, 2015 at 4:59 AM, Chandler Carruth <chandlerc at google.com>
wrote:

> I'm pretty sure this is responsible for breaking quite a few bots:
>
>
> http://lab.llvm.org:8011/builders/lld-x86_64-win7/builds/15857/steps/build_Lld/logs/stdio
>
> I'm reverting it to try to bring them back to life.
>

It looks like this also fixed a strange error in a lot of the other build
bots. Here is a good example of the error:

http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-abi-test/builds/368
http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-abi-test/builds/368/steps/build%20stage%201/logs/stdio

Here is the build right after my revert. It hasn't finished yet, but has
passed the stage that failed previously, so it looks like this is the
culprit.
http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-abi-test/builds/369
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