Added test case for static analyzer to detect uses of uninitialized pointers as receivers in Objective-C message expressions.
Added test case directory "Analysis-Apple" which is only run on Apple (darwin) machines.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48844 91177308-0d34-0410-b5e6-96231b3b80d8