Solve the issue found by Timothy in solveTriangular:

=> row-major rhs are now evaluated to a column-major
     temporary before the computations.
Add solveInPlace in Cholesky*

test/sparse.cpp

@@ -217,6 +217,10 @@ template<typename Scalar> void sparse(int rows, int cols)
     // TODO test row major
   }
 
+  // test Cholesky
+  {
+  }
+
 }
 
 void test_sparse()

test/triangular.cpp

@@ -125,5 +125,6 @@ void test_triangular()
     CALL_SUBTEST( triangular(MatrixXcf(4, 4)) );
     CALL_SUBTEST( triangular(Matrix<std::complex<float>,8, 8>()) );
     CALL_SUBTEST( triangular(MatrixXd(17,17)) );
+    CALL_SUBTEST( triangular(Matrix<float,Dynamic,Dynamic,RowMajor>(5, 5)) );
   }
 }