[analyzer] teach analyzer about ObjC literals, thus trimming out a false positive with the malloc() checker involving
comparing literal addresses to nil.

Fixes <rdar://problem/10579586>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151602 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed