[llvm] [llvm][sroa] Fixed failing assertion caused by no handling for `{launder, strip}.invariant.group` in `AggLoadStoreRewriter` (PR #151574)

[Tommy MᶜMichen via llvm-commits]

tommymcm wrote:

@nikic #151743 disables `invariant.group` support. Either one of these solutions works for me.

https://github.com/llvm/llvm-project/pull/151574