I excluded lldb from the "small" and "builder" flavours of EC2 AMIs
because on FreeBSD 14.x the lldb binary was 100 MB, as a result of
statically linking in lots of LLVM code; but we now have libprivatellvm
as a shared library and lldb is much smaller so there's no significant
benefit to excluding it.
MFC after: 3 days
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