Core Upgrader success statistics: Pass the version of WordPress we're upgrading from, as well as the version being upgraded to.

Merges [26016] and [26017] from 3.8 to the 3.7 branch.

fixes #25772.

Built from https://develop.svn.wordpress.org/branches/3.7@27883


git-svn-id: http://core.svn.wordpress.org/branches/3.7@27714 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-upgrader.php

@@ -1314,7 +1314,9 @@ class Core_Upgrader extends WP_Upgrader {
 	}
 
 	function upgrade( $current, $args = array() ) {
-		global $wp_filesystem, $wp_version;
+		global $wp_filesystem;
+
+		include ABSPATH . WPINC . '/version.php'; // $wp_version;
 
 		$start_time = time();
 
@@ -1422,6 +1424,7 @@ class Core_Upgrader extends WP_Upgrader {
 				'fs_method'        => $wp_filesystem->method,
 				'fs_method_forced' => defined( 'FS_METHOD' ) || has_filter( 'filesystem_method' ),
 				'time_taken'       => time() - $start_time,
+				'reported'         => $wp_version,
 				'attempted'        => $current->version,
 			);