Revert "Report only loaded debug info in statistics dump (#81706)" (#82150)
This reverts commit 21ddd7ff2b166c5e133b460b1a09ee8adb786ccd because it
breaks a bunch of tests:
https://lab.llvm.org/buildbot/#/builders/68/builds/69018
https://green.lab.llvm.org/green/view/LLDB/job/as-lldb-cmake/16273