[llvm] [TableGen] Inherit properties from the nearest allocatable superclass. (PR #127018)

[Pete Chou via llvm-commits]

petechou wrote:

I am probably working on a related issue that's discussed in https://reviews.llvm.org/D105967. f5917e0 is not enough to resolve my case and there's also a question about the inheritance of other properties raised in the code review. I feel it makes sense to inherit from the nearest allocatable super-class if isAllocatable could be set based on the property of any super-class. Appreciate any comment or feedback. Thanks.

https://github.com/llvm/llvm-project/pull/127018