In interpolate, move exceptional cases to the bottom (#37172)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37172
This improves readability by keeping cases with similar behavior close
together. It should also have a very tiny positive impact on perf.
ghstack-source-id: 106938109
Test Plan: Existing tests for interpolate.
Differential Revision: D21209996
fbshipit-source-id: c813e56aa6ba7370b89a2784fcb62cc146005258
