lint: Fix static analysis errors

include/class.plugin.php

@@ -68,6 +68,8 @@ class PluginConfig extends Config {
     }
 
     function commitForm(&$errors=array()) {
+        global $msg;
+
         $f = $this->getForm();
         $commit = false;
         if ($f->isValid()) {

include/class.search.php

@@ -296,6 +296,7 @@ class MysqlSearchBackend extends SearchBackend {
             $key = 'COALESCE(B1.ticket_id, B2.ticket_id, B3.ticket_id, B4.ticket_id)';
             $tables[] = "{$P}ticket A1 ON (A1.ticket_id = {$key})";
             $cdata_search = false;
+            $where = array();
 
             if ($criteria) {
                 foreach ($criteria as $name=>$value) {

setup/test/tests/stubs.php

@@ -10,6 +10,7 @@ class mysqli {
     function real_connect() {}
     function select_db() {}
     function set_charset() {}
+    function autocommit() {}
 }
 
 class mysqli_stmt {
@@ -113,4 +114,12 @@ class finfo {
 class Locale {
     function getDisplayName() {}
 }
+class IntlBreakIterator {
+    static function createWordInstance() {}
+    function setText() {}
+}
+
+class SqlFunction {
+    static function NOW() {}
+}
 ?>