[mlir] fix copying DialectRegistry and OperationState

Author: makslevental

mlir/include/mlir/IR/DialectRegistry.h

@@ -143,6 +143,7 @@ class DialectRegistry {
 
 public:
   explicit DialectRegistry();
+  DialectRegistry(const DialectRegistry &) = delete;
 
   template <typename ConcreteDialect>
   void insert() {

mlir/include/mlir/IR/OperationSupport.h

@@ -985,7 +985,7 @@ struct OperationState {
                  BlockRange successors = {},
                  MutableArrayRef<std::unique_ptr<Region>> regions = {});
   OperationState(OperationState &&other) = default;
-  OperationState(const OperationState &other) = default;
+  OperationState(const OperationState &other) = delete;
   OperationState &operator=(OperationState &&other) = default;
   OperationState &operator=(const OperationState &other) = default;
   ~OperationState();