[llvm] r238864 - Merge MCELF.h into MCSymbolELF.h.

[Reid Kleckner]

On Mon, Jun 8, 2015 at 2:57 PM, Reid Kleckner <rnk at google.com> wrote:

> On Tue, Jun 2, 2015 at 1:38 PM, Rafael Espindola <
> rafael.espindola at gmail.com> wrote:
>>
>> -void MCELFStreamer::EmitLabel(MCSymbol *Symbol) {
>> +void MCELFStreamer::EmitLabel(MCSymbol *S) {
>> +  auto *Symbol = cast<MCSymbolELF>(S);
>
>
> This cast is failing for me locally when building with clang-cl on
> Windows. This change passed when it was committed, so the problem must have
> emerged in the meantime. I don't have useful blame because my bot was
> failing to compile since
> http://lab.llvm.org:8011/builders/clang-x86-win2008-selfhost/builds/1279.
>

I figured it out, it was r239311, which introduced the buggy enum bitfield.
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