[llvm] [mlir] [mlir][core] Add an MLIR "pattern catalog" generator (PR #146228)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp,h -- mlir/lib/IR/CatalogingListener.cpp mlir/include/mlir/IR/PatternMatch.h mlir/lib/Rewrite/PatternApplicator.cpp
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/mlir/lib/Rewrite/PatternApplicator.cpp b/mlir/lib/Rewrite/PatternApplicator.cpp
index 210336afb..2771c90c2 100644
--- a/mlir/lib/Rewrite/PatternApplicator.cpp
+++ b/mlir/lib/Rewrite/PatternApplicator.cpp
@@ -212,10 +212,11 @@ LogicalResult PatternApplicator::matchAndRewrite(
 #ifndef NDEBUG
             OpBuilder::Listener *oldListener = rewriter.getListener();
             auto catalogingListener =
-                std::make_unique<RewriterBase::CatalogingListener>(oldListener,
-                                                     pattern->getDebugName());
+                std::make_unique<RewriterBase::CatalogingListener>(
+                    oldListener, pattern->getDebugName());
             rewriter.setListener(catalogingListener.get());
-            llvm::make_scope_exit([&] { rewriter.setListener(oldListener); };
+            llvm::make_scope_exit([&] {
+          rewriter.setListener(oldListener); };
 #endif
             result = pattern->matchAndRewrite(op, rewriter);
             LLVM_DEBUG(llvm::dbgs()

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https://github.com/llvm/llvm-project/pull/146228