The previous `makeDiff` implementation did account nor have enough
information to be able to upcast abstract types. This commit introduces
the necessary information for this to happen.
Add the PipelineDescription object that describes the structure of a
pipeline. This will be used by all the downstream users instead of
pipeline accessor methods via PipelineC.
Make `makeDiff` run faster by:
* Utilizing the information exposed by TYPE_HINTS which avoids having
expensive runtime checks
* Optimize some of the hot parts of the codebase to lower run times
add the setElementByPath function which allows setting a value in a
tuple tree give a tuple tree path to apply it to
Also apply some small fixes to the `tuple_tree.ts` codebase
In `add_custom_command` is one of the entries of `DEPENDS` is not a file
(i.e., it's a custom command), the dependency is only an ordering
dependency. This means that the command is not actually re-run when its
dependencies are invalidated.
Giacomo Vercesi