Some checks did not have documentation in the www/analyzer/ folder and also
some alpha checks became non-alpha.

Patch by Dominik Szabó!

Differential Revision: https://reviews.llvm.org/D33645

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@308242 91177308-0d34-0410-b5e6-96231b3b80d8