lj_state.c: Restore assertion that all memory is deallocated
lj_state.c: Restore assertion that all memory is deallocated

Repay some technical debt: I had disabled the lua_assert() checking
that when the VM closes the number of bytes freed is exactly the same
as the number of bytes allocated i.e. we were not defending against
memory leaks.

snabbco/snabb,Igalia/snabb,eugeneia/snabb,eugeneia/snabb,Igalia/snabb,eugeneia/snabb,alexandergall/snabbswitch,SnabbCo/snabbswitch,snabbco/snabb,snabbco/snabb,Igalia/snabbswitch,Igalia/snabb,eugeneia/snabb,eugeneia/snabb,Igalia/snabbswitch,alexandergall/snabbswitch,alexandergall/snabbswitch,eugeneia/snabb,Igalia/snabb,Igalia/snabb,alexandergall/snabbswitch,alexandergall/snabbswitch,snabbco/snabb,SnabbCo/snabbswitch,alexandergall/snabbswitch,SnabbCo/snabbswitch,Igalia/snabbswitch,Igalia/snabb,Igalia/snabb,Igalia/snabbswitch,eugeneia/snabb,snabbco/snabb,SnabbCo/snabbswitch,snabbco/snabb,snabbco/snabb,snabbco/snabb,eugeneia/snabb,alexandergall/snabbswitch,alexandergall/snabbswitch,Igalia/snabbswitch,Igalia/snabb