Keep correct `fieldSeq` for 0-offset fields.#32085

Merged

sandreenko merged 5 commits intodotnet:masterfrom

sandreenko:prepareForMike'sChanges

Feb 15, 2020

Commits on Feb 13, 2020

a few renamings in fgMorphCopyBlock.
Sergey Andreenko
committed
Add zero field offsets where it was missed.
Sergey Andreenko
committed
Add an optimization to lower to delete `LEA(addr, 0)`.
Sergey Andreenko
committed

Commits on Feb 14, 2020

Fix for x86 tests.
Sergey Andreenko
committed
Add a function header for `LowerNode`.
Sergey Andreenko
committed