[llvm] [AssignemntTracking] Skip large types in redundant debug info pruning (PR #74329)

[J. Ryan Stinnett via llvm-commits]

https://github.com/jryans requested changes to this pull request.

Overall reasonable, but see comments below.

Also, there's a typo in the commit and PR title: "AssignemntTracking" should be "AssignmentTracking"

https://github.com/llvm/llvm-project/pull/74329