Implement new JIT using Eclipse OMR JIT framework

[dibyendumajumdar]

IBM has open sourced the J9 JIT engine under Eclipse umbrella.

https://github.com/eclipse/omr

I'd like to support this Ravi in the hope that this will provide a lighter weight and faster JIT compiler compared to LLVM.

[dibyendumajumdar]

There is an IBM initiative to create a Lua JIT using OMR.
https://github.com/Leonardo2718/lua-vermelha
Best to wait and see how that goes.

[dibyendumajumdar]

Looking at this again in the quest for a small but optimizing JIT backend