Xcode recommended these changes to the project file.  It recommended
a number of warnings to be enabled.  The one making the most noise
across the code base right now is CLANG_WARN_UNREACHABLE_CODE = YES.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@219910 91177308-0d34-0410-b5e6-96231b3b80d8