Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190424 91177308-0d34-0410-b5e6-96231b3b80d8
Teach ScalarEvolution about pointer address spaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190425 91177308-0d34-0410-b5e6-96231b3b80d8