Thread Safety Analysis: fix uninitialized member in TIL Literal.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209904 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C. Diagnose assigning a block pointer type to
an Objective-C object type other than 'id'. 
// rdar://16739120


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209906 91177308-0d34-0410-b5e6-96231b3b80d8