[clang] nonblocking/nonallocating attributes: 2nd pass caller/callee analysis (PR #99656)

[Doug Wyatt via cfe-commits]

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@@ -4719,8 +4719,9 @@ class FunctionEffect {
     NonBlocking = 1,
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dougsonos wrote:

Good idea. I was afraid of a lot of fallout but it was actually quite an easy change to get rid of the sentinel value.

https://github.com/llvm/llvm-project/pull/99656