liblldb-11 1:11.0.1-2ubuntu4 (amd64 binary) in ubuntu impish

 LLDB is a next generation, high-performance debugger. It is built as a set of
 reusable components which highly leverage existing libraries in the larger LLVM
 Project, such as the Clang expression parser and LLVM disassembler.
 .
 This package contains the LLDB runtime library.