Fix lambda statements with non-lambda criteria

Fixed issue where :class:`_sql.StatementLambdaElement` would proxy
attribute access through the cached "expected" expression rather than the
resolved expression, causing stale closure-bound parameter values to be
used when a lambda statement was extended with non-lambda criteria such as
an additional ``.where()`` clause.  Courtesy cjc0013.

Fixes: #10827
Closes: #13327
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/13327
Pull-request-sha: ec3e6735bf95d62d768f214dd5a49bbfc4fecaa5

Change-Id: I8a32c11f3da63109cf37c39541df8ebfee52b8c5