Power Patch - rawstring

[Mike Nelson <mikestar1313@...>]

Been doing some experimenting with the Lua 5.2 source and doing a lot of 
patches mostly for learning purposes, both for understanding Lua 
internals and brushing up on my seriously rusty C skills. One idea might 
have some use for some readers--it adds a function "rawstring" to the 
core which returns the default tostring representation of an object 
without invoking any metamethods. I use it in __tostring metamethods to 
get the original representation (in my case, for extracting the address 
for use as an id number) without creating an infinite loop.

I'm now testing this, and if there is interest, I will make sure my code 
conforms to power patch guidelines and submit it in a couple of days.

-- Mike Nelson