[llvm] [FuncAttrs] Relax norecurse attribute inference (PR #139943)

[David Sherwood via llvm-commits]

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david-arm wrote:

nit: Maybe the file is better all lowercase, i.e. norecurse_multi_scc_indirect_recursion.ll and similarly for norecurse_multi_scc_indirect_recursion1.ll

https://github.com/llvm/llvm-project/pull/139943