Index: src/wp-includes/admin-bar.php
===================================================================
--- src/wp-includes/admin-bar.php	(revision 51243)
+++ src/wp-includes/admin-bar.php	(working copy)
@@ -403,6 +403,18 @@
 			)
 		);
 
+		// Add a Plugins link.
+		if ( current_user_can( 'activate_plugins' ) ) {
+			$wp_admin_bar->add_node(
+				array(
+					'parent' => 'site-name',
+					'id'     => 'ab-plugins',
+					'title'  => __( 'Plugins' ),
+					'href'   => admin_url( 'plugins.php' ),
+				)
+			);
+		}
+
 		// Add the appearance submenu items.
 		wp_admin_bar_appearance_menu( $wp_admin_bar );
 	}