* Prepare for new plan_devices.cc (part II)
These changes came from changing https://github.com/apache/tvm/pull/9038 to use
tvm.parser.fromtext instead of manual AST construction.
- Demote FunctionOnDeviceAttrs to just a pair of DictAttrs entries so
that the parser will understand them on Function definitions.
- Connect some special operators to their attributes so parsing understands them
at call sites.
- Don't silently ignore attributes during parsing.
- Implement OptFunctionOnDevice so won't add device annotations for kUnknownDeviceType.
- Allow the parser to be given an initial metadata map to support examples which
need constants.
- More DLOG -> VLOG conversions to reduce debug clutter.
* [checkpoint] Keep existing ParseModule ffi to simplify rust bindings
* [checkpoint] Address Christopher's comments.
* [checkpoint] Andrew's comments from #9038
* [checkpoint] Jared's comments from #9038
* [checkpoint] Woops, forgot rename.
Mark Shields
163322cc92