LLDB now correctly handles virtual inheritance.

Test case added as well.

<rdar://problem/16785904>



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@213433 91177308-0d34-0410-b5e6-96231b3b80d8
In Process::LoadImage, use the same function call both to call dlopen and to collect
the error if there is one.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@213436 91177308-0d34-0410-b5e6-96231b3b80d8