[jit][edge] Migrate DictType to DynamicType on mobile. (#70202)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70202
Use DynamicType instead of DictType all over the place in Lite Interpreter. Namely we need to modify the following places:
1. Type parser which produces the Type constants.
2. IValue::type() which returns reflected Type from IValues.
3. Helper functions to construct the container value.
4. Typechecks which test whether a type instance is a particular container type.
ghstack-source-id: 146735648
Test Plan: no behavior change.
Reviewed By: iseeyuan
Differential Revision: D33137257
fbshipit-source-id: 971bf431658c422ea9353cc32cdab66e98876e9d
