[lld] [lld-macho] Disable static assert failing on several platforms (PR #107514)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

> I think the issue is that Windows targets only "merge" bit fields when the underlying types have the same size. Can someone check that this fixes the issue?
> 
> ```diff
> diff --git a/lld/MachO/Symbols.h b/lld/MachO/Symbols.h
> index 70fd195f25c9..bfb777b86621 100644
> --- a/lld/MachO/Symbols.h
> +++ b/lld/MachO/Symbols.h
> @@ -14,6 +14,7 @@
>  #include "Target.h"
>  
>  #include "llvm/Object/Archive.h"
> +#include "llvm/Support/Compiler.h"
>  #include "llvm/Support/MathExtras.h"
>  
>  namespace lld {
> @@ -152,7 +153,8 @@ public:
>    // Whether this symbol should appear in the output symbol table.
>    bool includeInSymtab : 1;
>    // The ICF folding kind of this symbol: None / Body / Thunk.
> -  ICFFoldKind identicalCodeFoldingKind : 2;
> +  LLVM_PREFERRED_TYPE(ICFFoldKind)
> +  uint8_t identicalCodeFoldingKind : 2;
>    // Symbols marked referencedDynamically won't be removed from the output's
>    // symbol table by tools like strip. In theory, this could be set on arbitrary
>    // symbols in input object files. In practice, it's used solely for the
> ```

Yes, this does seem to fix the issue for me, too. Thanks!

https://github.com/llvm/llvm-project/pull/107514