Make sure a variable is no longer referenced when it is removed.

Michael Meskes <meskes@postgresql.org>

Commit: 1ca0b6d047a96a69800a0e00f3e61f148beed1db
Author: Michael Meskes <meskes@postgresql.org>
Date: 2003-06-11T06:39:13Z
Releases: 7.4.1
Make sure a variable is no longer referenced when it is removed.
Fixed counting bug in parsing "->" operator.
Removed that silly debugging function I accidently committed last night.

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