example backtrace

backtrace

(lldb) dylan-bt -a
  frame #0      [primitive_invoke_debugger]                                0x000001001baa71 libdylan.dylib at x86_64-darwin-runtime.ll:0
  frame #1      [Kinvoke_debuggerVKiMM1]                                   0x00000100151439 libdylan.dylib at boot.dylan:1041
  frame #2      [general_engine_node_n]                                    0x000001001d838d libdylan.dylib
  frame #3      [Kdefault_handlerVKdMM1]                                   0x000001001617e2 libdylan.dylib at condition.dylan:140
  frame #4      [general_engine_node_n]                                    0x000001001d838d libdylan.dylib
  frame #5      [Kdefault_last_handlerYcommon_dylan_internalsVcommon_dylanMM0] 0x000001000e7818 libcommon-dylan.dylib at common-extensions.dylan:448
  frame #6      [general_engine_node_n]                                    0x000001001d838d libdylan.dylib
  frame #7      [KerrorVKdMM0]                                             0x000001001613a6 libdylan.dylib at condition.dylan:125
  frame #8      [Kno_applicable_method_errorVKe]                           0x0000010015083d libdylan.dylib at boot.dylan:890
  frame #9      [general_engine_node_spread]                               0x000001001d532f libdylan.dylib
  frame #10     [general_engine_node_n]                                    0x000001001d838d libdylan.dylib
  frame #11     [Kone_off_debugVlsp_dylan]                                 0x000001000d5798 liblsp-dylan.dylib at compiler.dylan:81
  frame #12     [KmainVlsp_dylan]                                          0x000001000d1049 liblsp-dylan.dylib at lsp-dylan.dylan:375
  frame #13     [Ktop_level_initializerF4]                                 0x000001000d4f3b liblsp-dylan.dylib at lsp-dylan.dylan:461
  frame #14     [_Init_lsp_dylan__X_lsp_dylan_for_user]                    0x000001000d4f60 liblsp-dylan.dylib
  frame #15     [_Init_lsp_dylan__X]                                       0x000001000d503a liblsp-dylan.dylib
  frame #16     [_Init_lsp_dylan_]                                         0x000001000d5015 liblsp-dylan.dylib
  frame #17     [main]                                                     0x00000100001f89 lsp-dylan
  frame #18     [start]                                                    0x007fff5a3543d5 libdyld.dylib
  frame #19     [start]                                                    0x007fff5a3543d5 libdyld.dylib