TST: parametrize test_ldl_type_size_combinations (#15532)
TST: parametrize test_ldl_type_size_combinations (#15532)

TST:linalg: parametrize test_ldl_type_size_combinations
ilayn/scipy,endolith/scipy,andyfaff/scipy,scipy/scipy,andyfaff/scipy,scipy/scipy,Stefan-Endres/scipy,anntzer/scipy,scipy/scipy,Stefan-Endres/scipy,ilayn/scipy,mdhaber/scipy,scipy/scipy,rgommers/scipy,ilayn/scipy,Stefan-Endres/scipy,vigna/scipy,endolith/scipy,endolith/scipy,mdhaber/scipy,vigna/scipy,WarrenWeckesser/scipy,anntzer/scipy,andyfaff/scipy,vigna/scipy,endolith/scipy,rgommers/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,ilayn/scipy,andyfaff/scipy,anntzer/scipy,vigna/scipy,anntzer/scipy,Stefan-Endres/scipy,endolith/scipy,anntzer/scipy,endolith/scipy,rgommers/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,rgommers/scipy,anntzer/scipy,Stefan-Endres/scipy,andyfaff/scipy,scipy/scipy,scipy/scipy,perimosocordiae/scipy,perimosocordiae/scipy,mdhaber/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,mdhaber/scipy,vigna/scipy,ilayn/scipy,WarrenWeckesser/scipy,ilayn/scipy,rgommers/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,mdhaber/scipy,andyfaff/scipy,mdhaber/scipy