[llvm] [LLVM-Reduce] - Distinct Metadata Reduction (PR #104624)

[Matt Arsenault via llvm-commits]

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@@ -20,6 +20,13 @@
 
 using namespace llvm;
 
+extern cl::OptionCategory LLVMReduceOptions;
+
+static cl::opt<bool> AggressiveMetadataReduction(
+    "aggressive-md",
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arsenm wrote:

Make name more specific? Maybe reduce-unknown-named-metadata?

https://github.com/llvm/llvm-project/pull/104624