[Unity][Transform] Improved canonicalization of non-dataflow Var#15941

Lunderberg merged 3 commits intoapache:unityapache/tvm:unityfrom

Lunderberg:unity_canonicalize_var_to_dataflowvar_inside_dataflowblockLunderberg/tvm:unity_canonicalize_var_to_dataflowvar_inside_dataflowblockCopy head branch name to clipboard