xbolva00 bugreported $subj
It can happen only from the line:
In the case DW_TAG_compile_unit has DW_CHILDREN_yes but there is only 0 (end of list, no children present). Therefore the assertion can fortunately happen only with a hand-crafted DWARF or with DWARF from some suboptimal compilers.
I could not find a reproducer with unpatched LLDB code, could you provide what LLDB commands could reproduce that? A debuggee binary which can reproduce it is: lldb-repro.tar.xz