need to put HeapDump as data section in asm

global

info

--disable-inline

cargo test

Instead of using a cyclic doubly linked list, I am going to use two
doubly linked list as fromspace and tospace. This will greatly simplify
implementation.

Currently a treadmill for the whole space will be created, this takes huge amount of time
and even if treadmill space is not used, it needs to be traversed in every gc. Going to
change this tomorrow

make tracing able to trace freelist space (may have degraded
performance, gonna need to tune gc performance later)

replacing most uses of HashMap with LinkedHashMap. This will reduce (if not eliminate) undeterminism in the compilation.
Copied LinkedHashMap implementation to local so that I can implement encode/decode and other necessary methods