The test suite's tools.php file includes various utility functions for printing objects. Many of these predated debug handlers for those objects, so we should replace these with var_dump(). Using var_dump() would also ensure that tests get updated if/when new fields are added to these objects.

Suggested functions to replace:

• printWriteResult
• printWriteConcernError
• printWriteError
• getInsertCount
• getModifiedCount
• getDeletedCount
• getUpsertedCount
• getWriteErrors
• printServer