inline should now work better.... + a huge memory leak fixed

Rev: src/array.h:1.7
Rev: src/mapping.h:1.8
Rev: src/multiset.h:1.6
Rev: src/object.c:1.36
Rev: src/object.h:1.16
Rev: src/pike_memory.c:1.11
Rev: src/program.c:1.61
Rev: src/program.h:1.30