[analyzer] ReturnValueChecker: Model the guaranteed boolean return value of function calls

Summary: It models the known LLVM methods paired with their class.

Reviewers: NoQ, xazax.hun, ravikandhadai, baloghadamsoftware, Szelethus

Reviewed By: NoQ

Subscribers: dschuff, aheejin, mgorny, szepet, rnkovacs, a.sidorin,
             mikhail.ramalho, donat.nagy, dkrupp, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63915

llvm-svn: 365103