[clang] [LifetimeSafety] Add UseFacts for function arguments and assignment RHS (PR #180446)

[Gábor Horváth via cfe-commits]

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@@ -366,6 +366,7 @@ void FactsGenerator::VisitBinaryOperator(const BinaryOperator *BO) {
   // result should have the same loans as the pointer operand.
   if (BO->isCompoundAssignmentOp())
     return;
+  handleUse(BO->getRHS());
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Xazax-hun wrote:

I see, thanks for looking into the alternative approach! I agree, better to be incremental. I am fine landing this as is for now. 

https://github.com/llvm/llvm-project/pull/180446