[clang] [Clang] Fix CXXRewrittenBinaryOperator::getDecomposedForm to handle case when spaceship operator returns comparison category by reference (PR #66270)

[Mariya Podchishchaeva via cfe-commits]

https://github.com/Fznamznon commented:

Perhaps it needs a release note?

https://github.com/llvm/llvm-project/pull/66270