Rename View::memory_span to View::required_allocation_size

[hcedwar]

The name of this member function has been a reoccurring source of confusion, as such a rename is warranted.

[crtrott]

Here are all the current occurrences:

/home/crtrott/Trilinos/packages/kokkos/core/src/impl/KokkosExp_ViewMapping.hpp:  KOKKOS_INLINE_FUNCTION constexpr size_t memory_span() const
/home/crtrott/Trilinos/packages/kokkos/core/src/impl/KokkosExp_ViewMapping.hpp:  static constexpr size_t memory_span( typename Traits::array_layout const & arg_layout )
/home/crtrott/Trilinos/packages/kokkos/core/src/impl/KokkosExp_ViewArray.hpp:  KOKKOS_INLINE_FUNCTION constexpr size_t memory_span() const
/home/crtrott/Trilinos/packages/kokkos/core/src/KokkosExp_View.hpp:  static constexpr size_t memory_span( const size_t arg_N0 = 0
/home/crtrott/Trilinos/packages/kokkos/core/src/KokkosExp_View.hpp:      return map_type::memory_span(
/home/crtrott/Trilinos/packages/kokkos/core/src/KokkosExp_View.hpp:    return map_type::memory_span(
/home/crtrott/Trilinos/packages/kokkos/core/src/KokkosExp_View.hpp:                arg_space.get_shmem( map_type::memory_span( arg_layout ) ) ) )
/home/crtrott/Trilinos/packages/kokkos/core/src/KokkosExp_View.hpp:                  map_type::memory_span(
/home/crtrott/Trilinos/packages/sacado/src/KokkosExp_View_Fad.hpp:  static constexpr size_t memory_span( typename Traits::array_layout const & layout )
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/pce/KokkosExp_View_UQ_PCE_Contiguous.hpp:  memory_span(const size_t span, const unsigned pce_size) {
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/pce/KokkosExp_View_UQ_PCE_Contiguous.hpp:  static size_t memory_span( typename Traits::array_layout const & layout )
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/pce/KokkosExp_View_UQ_PCE_Contiguous.hpp:      return handle_type::memory_span( offset.span(), sacado_size );
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/pce/KokkosExp_View_UQ_PCE_Contiguous.hpp:      handle_type::memory_span( m_offset.span(), m_sacado_size );
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/vector/KokkosExp_View_MP_Vector_Contiguous.hpp:  memory_span(const size_t span, const unsigned vector_size) {
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/vector/KokkosExp_View_MP_Vector_Contiguous.hpp:  memory_span(const size_t span, const unsigned vector_size) {
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/vector/KokkosExp_View_MP_Vector_Contiguous.hpp:  static size_t memory_span( typename Traits::array_layout const & layout )
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/vector/KokkosExp_View_MP_Vector_Contiguous.hpp:      return handle_type::memory_span( offset.span(), sacado_size.value );
/home/crtrott/Trilinos/packages/stokhos/src/sacado/kokkos/vector/KokkosExp_View_MP_Vector_Contiguous.hpp:      handle_type::memory_span( m_offset.span(), m_sacado_size.value );