CLN: use .view(i8) instead of .astype(i8) for datetimelike values#38535

jreback merged 2 commits intopandas-dev:masterpandas-dev/pandas:masterfrom

jbrockmendel:ref-astype_nansafe-intsjbrockmendel/pandas:ref-astype_nansafe-intsCopy head branch name to clipboard