[MLIR] Adopt LDBG() debug macro in ConvertToLLVMPass (NFC) (#154616)

Author: joker-eph

mlir/lib/Conversion/ConvertToLLVM/ConvertToLLVMPass.cpp

@@ -14,6 +14,7 @@
 #include "mlir/IR/PatternMatch.h"
 #include "mlir/Rewrite/FrozenRewritePatternSet.h"
 #include "mlir/Transforms/DialectConversion.h"
+#include "llvm/Support/DebugLog.h"
 #include <memory>
 
 #define DEBUG_TYPE "convert-to-llvm"
@@ -79,13 +80,13 @@ class LoadDependentDialectExtension : public DialectExtensionBase {
 
   void apply(MLIRContext *context,
              MutableArrayRef<Dialect *> dialects) const final {
-    LLVM_DEBUG(llvm::dbgs() << "Convert to LLVM extension load\n");
+    LDBG() << "Convert to LLVM extension load";
     for (Dialect *dialect : dialects) {
       auto *iface = dyn_cast<ConvertToLLVMPatternInterface>(dialect);
       if (!iface)
         continue;
-      LLVM_DEBUG(llvm::dbgs() << "Convert to LLVM found dialect interface for "
-                              << dialect->getNamespace() << "\n");
+      LDBG() << "Convert to LLVM found dialect interface for "
+             << dialect->getNamespace();
       iface->loadDependentDialects(context);
     }
   }