[CFLAA] Use unsigned numbers for bit-shifts.

This uses `1U` instead of `1ULL` because StratifiedAttrs is a 32-bit
bitset.

Thanks to Hans-Bernhard Broker for bringing this up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273902 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed