[tuples] meaning of DECL_SAVED_TREE while analyzing cgraph

[Aldy Hernandez]

> The test there is sort of hack, I would just remove it at this stage and
> we can work out better fix for that testcase later.  I hope that with my
> plans for declaration merging pass we can get round such weird side
> effects of in place declaration replacement.

Will do.

How about all the other uses of DECL_SAVED_TREE in cgraph_analyze_functions?
DECL_SAVED_TREE shouldn't be used past the tree optimizers (??).

Aldy