luna-core 2.13.0

Pure-Rust Lua runtime (interpreter only, zero third-party dependencies). The JIT-equipped variant lives in the `luna-jit` crate.
Documentation 
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-- v2.13 CORPUS-IV: two closures share ONE upvalue cell.
local function make()
  local n = 0
  local function inc() n = n + 1 end
  local function get() return n end
  return inc, get
end
local inc, get = make()
print(get())
inc(); inc(); inc()
print(get())
local inc2, get2 = make()
print(get2(), get())