message: Allow returning PassMode::Cast directly to an ssa var
diff: @@ -44,9 +44,9 @@ pub(crate) fn can_return_to_ssa_var<'tcx>(
  FnAbi::of_fn_ptr(&RevealAllLayoutCx(fx.tcx), fn_ty.fn_sig(fx.tcx), &extra_args)
  };
  match fn_abi.ret.mode {
  - PassMode::Ignore | PassMode::Direct(_) | PassMode::Pair(_, _) => true,
  - // FIXME Make it possible to return Cast and Indirect to an ssa var.
  - PassMode::Cast(_) | PassMode::Indirect { .. } => false,
  + PassMode::Ignore | PassMode::Direct(_) | PassMode::Pair(_, _) | PassMode::Cast(_) => true,
  + // FIXME Make it possible to return Indirect to an ssa var.
  + PassMode::Indirect { .. } => false,
  }
  }
  