Lua debugger: added comment about helper functions.
Lua debugger: added comment about helper functions.

pedigree/redis,janekmi/redis,pedigree/redis,4396/redis,xuguruogu/redis,pedigree/redis,janekmi/redis,pedigree/redis,xuguruogu/redis,xuguruogu/redis,4396/redis,4396/redis,janekmi/redis,xuguruogu/redis,janekmi/redis,4396/redis