rdbms: Issue a deprecation warning if errors are ignored

rdbms: Issue a deprecation warning if errors are ignored

I532bc5201 added code to put the Database into an error state on error,
to prevent callers from catching and ignoring exceptions without rolling
back. But to avoid breaking everything relying on the ability to do so,
it didn't set the error state for certain types of errors.

To allow those broken callers to be cleaned up, log a deprecation
warning when we detect that someone has indeed ignored one of these
errors.

Bug: T189999
Change-Id: Ib7aca59639f30959e106fd4f1a1209e28bad2857