Avoid value-list creation when iterating over maps.

Change-Id: I704ba93d01ffababb405bc801f07a845631930cc
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

src/plugins/coreplugin/actionmanager/actionmanager.cpp

@@ -336,7 +336,7 @@ QList<Command *> ActionManager::commands()
 {
     // transform list of CommandPrivate into list of Command
     QList<Command *> result;
-    foreach (Command *cmd, d->m_idCmdMap.values())
+    foreach (Command *cmd, d->m_idCmdMap)
         result << cmd;
     return result;
 }