D85968 started to use split-file and while buildbots run fine while doing make check-lldb by hand I get:
.../llvm-monorepo-clangassert/tools/lldb/test/SymbolFile/DWARF/Output/DW_AT_declaration-with-children.s.script: line 2: split-file: command not found failed: lldb-shell :: SymbolFile/DWARF/DW_AT_declaration-with-children.s
Please keep this list sorted.