Fix spelling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188506 91177308-0d34-0410-b5e6-96231b3b80d8
Don't do FoldCmpLoadFromIndexedGlobal for non inbounds GEPs

This path wasn't tested before without a datalayout,
so add some more tests and re-run with and without one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188507 91177308-0d34-0410-b5e6-96231b3b80d8