in forward declaration replace class keyword when struct is expected

src/3rdParty/salomesmesh/inc/MED_Common.hxx

@@ -170,7 +170,7 @@ namespace MED{
   struct TGaussInfo;
   typedef SharedPtr<TGaussInfo> PGaussInfo;
   
-  class TGrilleInfo;
+  struct TGrilleInfo;
   typedef SharedPtr<TGrilleInfo> PGrilleInfo;
 
   struct TTimeStampValueBase;

src/3rdParty/salomesmesh/inc/MED_GaussDef.hxx

@@ -29,7 +29,7 @@
 
 namespace MED
 {
-  class TShapeFun;
+  struct TShapeFun;
   typedef std::vector<double> TDoubleVector;
   /*!
    * \brief Description of family of integration points

src/3rdParty/salomesmesh/inc/SMESH_MAT2d.hxx

@@ -45,7 +45,7 @@ namespace SMESH_MAT2d
 {
   class MedialAxis; // MedialAxis is the entry point
   class Branch;
-  class BranchEnd;
+  struct BranchEnd;
   class Boundary;
   struct BoundaryPoint;
 

src/3rdParty/salomesmesh/inc/SMESH_MeshEditor.hxx

@@ -51,7 +51,7 @@ class gp_Ax1;
 class gp_Vec;
 class gp_Pnt;
 class SMESH_MesherHelper;
-class SMESH_NodeSearcher;
+struct SMESH_NodeSearcher;
 
 // ============================================================
 /*!

src/3rdParty/salomesmesh/inc/SMESH_subMesh.hxx

@@ -47,7 +47,7 @@ class SMESH_Hypothesis;
 class SMESH_Algo;
 class SMESH_Gen;
 class SMESH_subMeshEventListener;
-class SMESH_subMeshEventListenerData;
+struct SMESH_subMeshEventListenerData;
 class SMESH_subMesh;
 
 typedef SMESH_subMeshEventListener     EventListener;