Revert "Cleanups after we dropped mem vtables"
Revert "Cleanups after we dropped mem vtables"

This reverts commit 627854fee1fde93e01f27655b00a9082348ee15f.

It has been argued that not aborting on malloc() failure is
an incompatible change.

cention-sany/glib,ieei/glib,tchakabam/glib,johne53/MB3Glib,ieei/glib,ieei/glib,ieei/glib,tchakabam/glib,MathieuDuponchelle/glib,cention-sany/glib,endlessm/glib,tchakabam/glib,endlessm/glib,endlessm/glib,cention-sany/glib,tchakabam/glib,endlessm/glib,Distrotech/glib,johne53/MB3Glib,MathieuDuponchelle/glib,MathieuDuponchelle/glib,johne53/MB3Glib,endlessm/glib,johne53/MB3Glib,johne53/MB3Glib,MathieuDuponchelle/glib,mzabaluev/glib,mzabaluev/glib,ieei/glib,mzabaluev/glib,Distrotech/glib,cention-sany/glib,tchakabam/glib,mzabaluev/glib,johne53/MB3Glib,mzabaluev/glib,MathieuDuponchelle/glib,Distrotech/glib,Distrotech/glib,Distrotech/glib,cention-sany/glib