Cool, if you (or someone else) can give me the fields or functions in the druntime.rt package that can be used to print associative arrays from GDB, then I can try my hand at building a pretty-printer using GDB's Python API next week.
AA implementation is provided by https://github.com/dlang/druntime/blob/master/src/rt/aaA.d, and you can either try reimplementing key logic in Python (more work but cleaner impl) or just call relevant functions via gdb python api and parse results. It should actually be possible to call functions like __aaGetX even with release build of druntime, you just to do a manual cast to the correct function type from a raw pointer.
