Refactor `HasMultiRegRetVal` and `impFixupCallStructReturn`.#36465

Merged

sandreenko merged 9 commits intodotnet:masterfrom

sandreenko:refForMultiReg

May 15, 2020

Commits on May 6, 2020

Fix target definitions.
Sergey Andreenko
committed

Commits on May 8, 2020

Fix failures after a recent HW changes.
Sergey Andreenko
committed

Commits on May 14, 2020

Add a const getter for `ReturnTypeDesc` from a call.
Sergey Andreenko
committed
Refactor `HasMultiRegRetVal` and `impFixupCallStructReturn`.
Sergey Andreenko
committed
Delete an extra `.` in some dumps.
Sergey Andreenko
committed
Add an additional check that `ReturnTypeDesc` is initialized.
Sergey Andreenko
committed
Remove old `const_cast` around `GetReturnTypeDesc`.
Sergey Andreenko
committed

Commits on May 15, 2020

Replace non-const `GetReturnTypeDesc` with other methods.
Sergey Andreenko
committed
Fix uninitialized `gtSpillFlags, gtOtherRegs, gtReturnTypeDesc` in `fgMorphIntoHelperCall`.
Sergey Andreenko
committed