message: llvm2alive: ignore irce & nosanitize metadata
diff: @@ -1220,11 +1220,16 @@ public:
  // non-relevant for correctness
  case LLVMContext::MD_loop:
  + case LLVMContext::MD_nosanitize:
  case LLVMContext::MD_prof:
  case LLVMContext::MD_unpredictable:
  break;
  default:
  + // non-relevant for correctness
  + if (ID == Node->getContext().getMDKindID("irce.loop.clone"))
  + break;
  +
  // For the target, dropping metadata is fine as metadata will never turn
  // a incorrect function into a correct one.
  if (!IsSrc)
  