Silencing a "result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)" warning in MSVC; NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230489 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed