Use one more byte to silence a warning from Vistual C++

Author: stephan-yichao-zhao

llvm/include/llvm/Bitstream/BitstreamWriter.h

@@ -156,7 +156,7 @@ class BitstreamWriter {
     uint64_t CurPos = FS->tell();
 
     // Copy data to update into Bytes from the file FS and the buffer Out.
-    char Bytes[8];
+    char Bytes[9]; // Use one more byte to silence a warning from Visual C++.
     size_t BytesNum = StartBit ? 8 : 4;
     size_t BytesFromDisk = std::min(static_cast<uint64_t>(BytesNum), NumOfFlushedBytes - ByteNo);
     size_t BytesFromBuffer = BytesNum - BytesFromDisk;