This is the first (of many) steps to add support for Windows mini dumps as targets.
Like loading an ELF core file, this patch allows lldb to open a mini dump with a command like this:
(lldb) target create -c foo.dmp
All you can do now is see the thread list. I'm planning to add functionality in bite-sized chunks.
I'm still thinking about how to write tests for this functionality. I haven't found any ELF core tests to pattern after. If you have suggestions, let me know.