SelectionDAG: Get libcall info from analysis, not TargetLowering (#239827) TargetLowering's copy of the libcall info will eventually be removed. Use the LibcallLoweringInfo analysis from SelectionDAG instead. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> GitOrigin-RevId: aa1a146d10dceceb6a3e3de048a2160b66fcd13d