Silencing warnings from MSVC 2015 Update 2. All of these changes silence "C4334 '<<': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)". NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264929 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed