fix IN_SUBQUERY projection bugs

[max-hoffman]

Correctness regression fix. With a bit more work this could probably be a smaller query:

CREATE VIEW view_2_tab1_157 AS SELECT pk, col0 FROM tab1 WHERE NOT ((col0 IN (SELECT col3 FROM tab1 WHERE ((col0 IS NULL) OR col3 > 5 OR col3 <= 50 OR col1 < 83.11))) OR col0 > 75);

The CREATE panicked because the top-level projections get pushed into the source node, and my recent refactors failed to map projections onto the reported table output column sets.

[jycor]

LGTM