1. Some implementation do not set subId in evaluatePosition
2. Some implementation do not set pcoords in evaluatePosition
3. vtkEmptyCell implementation was not complete as it was not setting any output parameters
4. Corrected some double "1" into double "1.0"
5. Corrected some pcoords = -10.0 en pcoords = -1.0
6. Some useless codes have been replaced by vtkNotUsed
7. Some test do not allocate enough memory for their pcoords array