[llvm] [NFC]Make file-local cl::opt global variables static (PR #126486)

[Rahul Joshi via llvm-commits]

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@@ -44,7 +44,7 @@ AllowStridedPointerIVs("lv-strided-pointer-ivs", cl::init(false), cl::Hidden,
                                 "pointer induction variables."));
 
 namespace llvm {
-cl::opt<bool>
+static cl::opt<bool>
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jurahul wrote:

Agreed, we should pull them out of the namespace

https://github.com/llvm/llvm-project/pull/126486