[MERGE #5072 @benjamin-bader] Suppress tatutological-compare error in FixedBitVector.h

Merge pull request #5072 from benjamin-bader:bebader/fix-linux-tautological-error

Fixes #5062

lib/Common/DataStructures/FixedBitVector.h

@@ -296,7 +296,9 @@ void BVFixed::SetRange(Container* value, BVIndex start, BVIndex len)
         // Default case. We need to process everything 1 at a time
         {
             // First set the first bits
+CLANG_WNO_BEGIN("-Wtautological-compare")
             const BVUnit::BVUnitTContainer mask = MAKE_MASK(oStart, BVUnit::BitsPerWord);
+CLANG_WNO_END
             SET_RANGE(iStart, *bits << oStart, mask);
         }
         // Set the bits in the middle