an alias when the 'own_mem' parameter is fasle.
Several simplifications/tweaks related to Vector::NewMemoryAndSize
and Vector::MakeRef in BlockVector, GridFunction, LinearForm, and
ParBlockNonlinearForm.
Add more MFEM_ASSERTs in MemoryManager::Delete_.
Remove MemoryManager::RegisterAliasBases().
In Memory<T>::MakeAlias, register the 'base' when the globally
configured device memory type (which can be a host type, e.g. when
running on host) is a device memory type. Always registering the
'base' creates errors in the unit tests:
"alias already exists with different base/offset!"
which are probably due to dangling aliases. If we want to always
register the 'base', we need to address these errors.
Updated the unit test "MemoryManager/Scopes" to test for the new
behavior of Vector::NewMemoryAndSize.
Disable the unit test "MemoryManager" since it defined a Device
object which destroys the MemoryManager at the end of the test.