Pre-allocation syntax of tables

[Garanas]

The Lua of the game supports pre-allocation syntax when you create a new table: {&1&1} where 1 can be any number. The numbers allow us to define the second and third argument of the NEWTABLE operation. For more information:

• https://www.lua.org/source/5.1/lopcodes.h.html

Previously no file with that syntax was part of the repository. But the lazyvar.lua file uses it: FAForever/fa#3725 . It is also an interesting approach to get a 20% - 50% speed up on table allocations, according to benchmarks.

This compiler doesn't need to support the functionality. But it would be great if it would accept the syntax 😄 .