[MemorySSA] Move two simple getters; NFC

We're calling these functions quite a bit from outside of MemorySSA.cpp
now. Given that they're relatively simple one-liners, I think the style
preference is to have them inline.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340430 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed