Remove DimensionedTensorType (#24077)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24077
This replaces all uses of DimensionedTensorType with ProfiledTensorType.
For places where we propagate shape information, we still follow the
dimension-only propagation rules, meaning that even if full size information
is known on inputs the outputs will only have dimension information.
This fixes several bugs in existing implentations that this change uncovered:
* requires_grad was not propgated correctly across loops
* requires_grad on ProfiledTensorType returned false when requires_grad information
is unknown but the conservative result is true
* some equality code on ProfiledTensorType contained bugs.
Test Plan: Imported from OSS
Reviewed By: suo
Differential Revision: D16729581
Pulled By: zdevito
fbshipit-source-id: bd9f823c1c6b1d06a236a1b5b2b2fcdf0245edce
