Fixed some issues found by static analysis

modules/flann/include/opencv2/flann/allocator.h

@@ -182,6 +182,9 @@ public:
         return mem;
     }
 
+private:
+    PooledAllocator(const PooledAllocator &); // copy disabled
+    PooledAllocator& operator=(const PooledAllocator &); // assign disabled
 };
 
 }

modules/flann/include/opencv2/flann/flann_base.hpp

@@ -264,6 +264,9 @@ private:
     bool loaded_;
     /** Parameters passed to the index */
     IndexParams index_params_;
+
+    Index(const Index &); // copy disabled
+    Index& operator=(const Index &); // assign disabled
 };
 
 /**

modules/flann/include/opencv2/flann/miniflann.hpp

@@ -74,6 +74,10 @@ struct CV_EXPORTS IndexParams
                 std::vector<double>& numValues) const;
 
     void* params;
+
+private:
+    IndexParams(const IndexParams &); // copy disabled
+    IndexParams& operator=(const IndexParams &); // assign disabled
 };
 
 struct CV_EXPORTS KDTreeIndexParams : public IndexParams