[PATCH] Moar string interceptors: strstr, strcasestr, strcspn, strpbrk

[Kostya Serebryany]

>>! In D6056#13, @ygribov wrote:
>> As long as the aggressive behavior can be disabled by a flag ... I am ok with this.
> 
> I guess we can do this for already existing interceptors as well? 
Well, if you want to ...

> What setting should be default?
I am fine with the most aggressive default

http://reviews.llvm.org/D6056