Switch from using KERN_PROCARGS2 to get the path to the executed process to proc_pidpath.  The former was flakey, and the whole point of libproc is to protect us from potential flakiness at that level...
Switch from using KERN_PROCARGS2 to get the path to the executed process to proc_pidpath.  The former was flakey, and the whole point of libproc is to protect us from potential flakiness at that level...

<rdar://problem/12594781>

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@167194 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb