Update the dyld_all_image_infos size definition in
DynamicLoaderMacOSXDYLD::ReadAllImageInfosStructure for
version 13 of that structure.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@179584 91177308-0d34-0410-b5e6-96231b3b80d8