Reland"[lldb] Add count for errors of DWO files in statistics and combine DWO file count functions" (#156980)

This relands changes in https://github.com/llvm/llvm-project/pull/155023
for adding a count of dwo errors and combine all the dwo related stats
into one struct.

The previous PR was reverted in
https://github.com/llvm/llvm-project/pull/156777 as the newly added unit
test `test_dwo_id_mismatch_error_stats` sometimes fails due to
inappropriate use of `glob.glob`.
This change modified the tests created in the former PR to collect and
modify the dwo files by there names instead of using index after
`glob.glob`. This will avoid the possible failure in these tests if the
order of dwo files changes.

[Original PR:
https://github.com/llvm/llvm-project/pull/155023](https://github.com/llvm/llvm-project/pull/155023)

## Testing
Ran unit tests
```
$ ./bin/llvm-lit /data/users/ziyiww/llvm-project/lldb/test/API/commands/statistics/basic/TestStats.py
./bin/llvm-lit /data/users/ziyiww/llvm-project/lldb/test/API/commands/statistics/basic/TestStats.py -v
-- Testing: 1 tests, 1 workers --
PASS: lldb-api :: commands/statistics/basic/TestStats.py (1 of 1)

Testing Time: 388.52s

Total Discovered Tests: 1
  Passed: 1 (100.00%)

$ bin/lldb-dotest -p TestStats.py /data/users/ziyiww/llvm-project/lldb/test/API/commands/statistics/basic/
----------------------------------------------------------------------
Ran 27 tests in 386.302s

OK (skipped=3)
```