Update prebuilt Clang to r416183b from Android.

https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef

clang 12.0.5 (based on r416183b) from build 7284624.

Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/include/llvm/IR/PredIteratorCache.h b/linux-x64/clang/include/llvm/IR/PredIteratorCache.h
index cc83527..6bbd7e5 100644
--- a/linux-x64/clang/include/llvm/IR/PredIteratorCache.h
+++ b/linux-x64/clang/include/llvm/IR/PredIteratorCache.h
@@ -44,7 +44,7 @@
     if (Entry)
       return Entry;
 
-    SmallVector<BasicBlock *, 32> PredCache(pred_begin(BB), pred_end(BB));
+    SmallVector<BasicBlock *, 32> PredCache(predecessors(BB));
     PredCache.push_back(nullptr); // null terminator.
 
     BlockToPredCountMap[BB] = PredCache.size() - 1;
@@ -58,7 +58,7 @@
     auto Result = BlockToPredCountMap.find(BB);
     if (Result != BlockToPredCountMap.end())
       return Result->second;
-    return BlockToPredCountMap[BB] = std::distance(pred_begin(BB), pred_end(BB));
+    return BlockToPredCountMap[BB] = pred_size(BB);
   }
 
 public: