Fix a copy and paste error that would cause a crash.

[clayborg]

Summary

The wrong variable was being checked for an error, which mean a llvm::Error went unchecked and crashes dsymutil. Discovered this when trying to feed an ELF file to "dsymutil --update" and running into the crash.

[JDevlieghere]

Good catch, thanks for fixing that. LGTM.

llvm/tools/dsymutil/MachODebugMapParser.cpp

 ErrorOr<std::vector<std::unique_ptr<DebugMap>>> MachODebugMapParser::parse() {
   auto ObjectEntry = BinHolder.getObjectEntry(BinaryPath);
   if (!ObjectEntry) {
     return errorToErrorCode(ObjectEntry.takeError());
   }
 
   auto Objects = ObjectEntry->getObjectsAs<MachOObjectFile>();
   if (!Objects) {
-    return errorToErrorCode(ObjectEntry.takeError());
+    return errorToErrorCode(Objects.takeError());
   }
 
   std::vector<std::unique_ptr<DebugMap>> Results;
   for (const auto *Object : *Objects)
     if (shouldLinkArch(Archs, Object->getArchTriple().getArchName()))
       Results.push_back(parseOneBinary(*Object, BinaryPath));
 
   return std::move(Results);