patch wp installer to use dropin db adapter

$ git diff install.old install.php

diff --git a/install.old b/install.php
index d23073b..6b2202e 100644
--- a/install.old
+++ b/install.php
@@ -39,7 +39,7 @@ require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' );
 require_once( dirname( __FILE__ ) . '/includes/upgrade.php' );

 /** Load wpdb */
-require_once(dirname(dirname(__FILE__)) . '/wp-includes/wp-db.php');
+require_wp_db();

 $step = isset( $_GET['step'] ) ? $_GET['step'] : 0;

This is still broken in WP 3.3.1.
Additionally the require_wp_db function has a massive error and can't have ever been tested.
(It should look like this - https://gist.github.com/1688245 )
With that amount of patching, you may as as well replace the bundled wp-db.php file completely. the wp-content/db.php hack seems like an afterthought, and plain doesn't work.