testing policy for C/C++ front end changes

[Sandra Loosemore]

Forgive me if this has been raised before -- I tried searching the 
archives but couldn't think of good keywords that would weed out 
unrelated posts....

I was checking the testing requirements for a C front end patch

https://gcc.gnu.org/contribute.html#testing

and noticed that the policy is to require a complete bootstrap for C 
changes, but not for C++.  Given that GCC's implementation language is 
now C++, isn't that backwards?  I'm not trying to weasel out of the 
extra work for my patch, just curious if the web site guidelines have 
gotten bit-rotten after the switch to C++, or if the SC did indeed 
consider the issue already and the published policy is accurate.

-Sandra