[lld] [lld][MachO] Implement -emit-tbd-only= (PR #194899)

[Nuri Amari via llvm-commits]

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@@ -554,7 +556,7 @@ static InputFile *processFile(std::optional<MemoryBufferRef> buffer,
   if (newFile && !isa<DylibFile>(newFile)) {
     if ((isa<ObjFile>(newFile) || isa<BitcodeFile>(newFile)) && newFile->lazy &&
         config->forceLoadObjC) {
-      for (Symbol *sym : newFile->symbols)
+      for (lld::macho::Symbol *sym : newFile->symbols)
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NuriAmari wrote:

Yeah the inclusion of TextAPI headers in this file introduces another `Symbol` type making the existing unqualified references to `Symbol` ambiguous. 

https://github.com/llvm/llvm-project/pull/194899