* [Relay] Odd's 'n ends changes to help Collage.
- Complete the implementation of WithFields.
(Unfortunately they appear to be without unit tests and I continue this tradition...)
- InferTypeExpr for InferTypeLocal but return the expression rather than the type.
- Remove python binding of InlineComposites since C++ impl was removed some time ago.
- Make IndexedGraph<Expr/DFPattern> more robust as stand-alone datastructure, and avoid unnecessary copies.
This will become a fundamental datastructure in Collage rather than just a helper for DFPatternMatcher.
- Extend IndexedGraph with a notion of 'basic block' on every dataflow node. Needed by Collage to
avoid impossible partitions.
* - Revert non IndexedGraph changes.
* - Stick to 'Indexed graph' terminology
- More tests
* - Stick to 'Indexed graph' terminology
- More tests
* - Remove silly unit test
Mark Shields
d8f57ed7ff