PDB support for LLDB

This is just a heads up that I’m starting to work on PDB support for LLDB. Initially this is going to start out as a command line utility that lives in llvm\tools along with other similar utilities like llvm-dwarfdump, etc. After that is reasonably functional, I’m going to work on factoring the code out into something like a libpdb, and have the pdb dumper rely on the library. Finally I will add a PDB plugin to LLDB which makes use of the libpdb.

At least this is the plan for now.

Initial commit of llvm-pdbdump is already up for review (http://reviews.llvm.org/D7153). It only dumps raw PDB data streams at the moment, but subsequent commits will improve this functionality greatly.

Anyway, just a heads up. If you know about or are interested in Windows, feel free to take a look at the patch and comment.