Added mistake found in CSR_impl.h, where the indexType is missing in getType().

src/UnitTests/Matrices/DenseMatrixTest.cpp

+/***************************************************************************
+                          SparseMatrixTest.cpp -  description
+                             -------------------
+    begin                : Nov 2, 2018
+    copyright            : (C) 2018 by Tomas Oberhuber et al.
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+#include "SparseMatrixTest.h"
\ No newline at end of file

src/UnitTests/Matrices/DenseMatrixTest.cu

+/***************************************************************************
+                          SparseMatrixTest.cu -  description
+                             -------------------
+    begin                : Nov 2, 2018
+    copyright            : (C) 2018 by Tomas Oberhuber et al.
+    email                : tomas.oberhuber@fjfi.cvut.cz
+ ***************************************************************************/
+
+/* See Copyright Notice in tnl/Copyright */
+
+#include "SparseMatrixTest.h"
\ No newline at end of file

src/UnitTests/Matrices/SparseMatrixTest.h

@@ -12,6 +12,7 @@
 /*
  * getType()                        ::HOW?  How to test this for each format? edit string how?
  *      Found the mistake for Cuda instead of Devices::Cuda. Incorrect String in src/TNL/Devices/Cuda.cpp
+ *      MISSING: indexType is missing in CSR_impl.h
  * getTypeVirtual()                 ::TEST? This just calls getType().
  * getSerializationType()           ::TEST? This just calls HostType::getType().
  * getSerializationTypeVirtual()    ::TEST? This just calls getSerializationType().