OpenFOAM: Updated all libraries, solvers and utilities to use the new const-safe tmp

The deprecated non-const tmp functionality is now on the compiler switch
NON_CONST_TMP which can be enabled by adding -DNON_CONST_TMP to EXE_INC
in the Make/options file.  However, it is recommended to upgrade all
code to the new safer tmp by using the '.ref()' member function rather
than the non-const '()' dereference operator when non-const access to
the temporary object is required.

Please report any problems on Mantis.

Henry G. Weller
CFD Direct.

applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C

@@ -181,7 +181,7 @@ void subsetVolFields
         {
             if (addedPatches.found(patchI))
             {
-                tSubFld().boundaryField()[patchI] ==
+                tSubFld.ref().boundaryField()[patchI] ==
                     pTraits<typename GeoField::value_type>::zero;
             }
         }
@@ -233,7 +233,7 @@ void subsetSurfaceFields
         {
             if (addedPatches.found(patchI))
             {
-                tSubFld().boundaryField()[patchI] ==
+                tSubFld.ref().boundaryField()[patchI] ==
                     pTraits<typename GeoField::value_type>::zero;
             }
         }