[WIP] Interpreter for decomposing aten -> prims
If an aten -> prim decomposition is needed *after* the initial trace
with make_fx, this interpreter can be used to perform the decomposition.
ghstack-source-id: a3d04fdc0cd7b0e7c237bf3a3e478d5460aaaaa9
Pull Request resolved: https://github.com/pytorch/pytorch/pull/79989
