Analyzer: Make helper function static.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@208473 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C ARC. Add support for toll-free bridge 
type ,and bridge attribute, checking with static_cast. 
// rdar://16756639


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@208474 91177308-0d34-0410-b5e6-96231b3b80d8
Wrap to 80 columns. No behavior change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@208475 91177308-0d34-0410-b5e6-96231b3b80d8