Attempt to fix bot failure on Windows. Looks like this expression was accidentally using 32-bit arithmetic.
Attempt to fix bot failure on Windows.
Looks like this expression was accidentally using 32-bit arithmetic.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@297969 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit e3a9e905c97b311b0ba5efb8100761373acad3c0)

apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm