[llvm] [JumpThreading] Add a hook to override options (PR #111826)

[Matt Arsenault via llvm-commits]

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@@ -304,10 +300,9 @@ bool JumpThreadingPass::runImpl(Function &F_, FunctionAnalysisManager *FAM_,
   // size.
   if (BBDuplicateThreshold.getNumOccurrences())
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arsenm wrote:

Partially, but I meant more parsing these as named parameters in the pass syntax. We should replace most cl::opts with named parameters in the pass pipeline 

https://github.com/llvm/llvm-project/pull/111826