Function load_buffer 

pub fn load_buffer(
    state: &mut LuaState,
    buff: &[u8],
    name: &[u8],
) -> Result<i32, LuaError>

Load a buffer as a Lua chunk (no mode argument).

C: #define luaL_loadbuffer(L,s,sz,n) luaL_loadbufferx(L,s,sz,n,NULL)