luna-core 2.15.0

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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-- v2.15 P2.4 utf8: char/codepoint round-trip.
for _, cp in ipairs({0x41, 0x80, 0xff, 0x100, 0x7ff, 0x800, 0xffff, 0x10000, 0x10ffff}) do
  local s = utf8.char(cp)
  local back = utf8.codepoint(s, 1)
  print(cp == back, cp, back)
end