[Bug tree-optimization/127169] fold_using_range::range_of_call should be not calling gimple_stmt_nonnegative_p

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127169

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yeah, all the stmt walking should go away.