Unconditionally register Python decomps to Meta key in Python Dispatcher (#85750)
This makes them available for Python Dispatcher to service them when
symbolic shapes are involved. This is needed because under certain
conditions, functionalization will directly call the Meta kernel for a
function in order to produce a properly sized output wrapper tensor
for a view operation. This direct call bypasses the normal decomposition
table mechanism.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/85750
Approved by: https://github.com/wconstab
