Blog post about printing associative arrays from GDB

[Mihails]

GDB has some dedicated functionality to improve pretty-printing 
and expression evaluation of things that too complex to figure 
out automatically:

- https://sourceware.org/gdb/onlinedocs/gdb/Pretty-Printing.html
- 
https://sourceware.org/gdb/onlinedocs/gdb/Writing-an-Xmethod.html

GCC, for example, provides such scripts for improved debugging of 
C++ standard library as part of its distribution. Writing 
something similar for DMD/GDC/LDC shouldn't be too hard.