Change TargetList::CreateTarget to realpath the c-string filename of the
executable -- if I do "(lldb) file ~/bin/exe" that tilde expansion needs
to take place here.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@179831 91177308-0d34-0410-b5e6-96231b3b80d8