Clean up isinstance flags (#33265)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33265
This removes the need for isinstance to keep trace of list and tuple
separately by introducing AnyListType and AnyTupleType into the JIT
type system to be the common supertype of any lists or tuples.
This allows us to remove the weird flags from the interpreter for
the isinstance operator.
Test Plan: Imported from OSS
Differential Revision: D19883933
Pulled By: zdevito
fbshipit-source-id: f998041b42d8b4554c5b99f4d95d1d42553c4d81
