[MLIR][NFC] Adopt variadic isa<>

Differential Revision: https://reviews.llvm.org/D82489
diff --git a/mlir/lib/Transforms/LoopFusion.cpp b/mlir/lib/Transforms/LoopFusion.cpp
index 4ca27b4..6a7a88e 100644
--- a/mlir/lib/Transforms/LoopFusion.cpp
+++ b/mlir/lib/Transforms/LoopFusion.cpp
@@ -70,10 +70,8 @@
 
 // TODO(b/117228571) Replace when this is modeled through side-effects/op traits
 static bool isMemRefDereferencingOp(Operation &op) {
-  if (isa<AffineReadOpInterface>(op) || isa<AffineWriteOpInterface>(op) ||
-      isa<AffineDmaStartOp>(op) || isa<AffineDmaWaitOp>(op))
-    return true;
-  return false;
+  return isa<AffineReadOpInterface, AffineWriteOpInterface, AffineDmaStartOp,
+             AffineDmaWaitOp>(op);
 }
 
 namespace {