Can Chinese name function functions be supported? #261

from lupa.lua53 import LuaRuntime

lua = LuaRuntime()

r = lua.execute("""
function 加法(a, b)
return a + b 
end
return 加法(1,2)
""")
print(r)

Traceback (most recent call last):
  File "E:\tlsoft\echo.py", line 7, in <module>
    r = lua.execute("""
  File "lupa\lua53.pyx", line 412, in lupa.lua53.LuaRuntime.execute
  File "lupa\lua53.pyx", line 1735, in lupa.lua53.run_lua
lupa.lua53.LuaSyntaxError: error loading code: [string "<python>"]:2: <name> expected near '<\229>'