Themed Icons: Introduce Utils::Icon

Instead of describing icons via file name or in the themed icons case
via
a string that is a list of mask/color pairs, we have now a class for it.

Icons are now listed in per-plugin *icons.h headers.

RunControl::m_icon was The only place left where an icon property was in
fact a string. This patch changes that member to be a Utils::Icon.

Change-Id: Ibcfa8bb25e6d2e330c567ee7ccc0b97ead603177
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/qmljstools/qmlconsoleitemdelegate.cpp

@@ -32,7 +32,7 @@
 #include "qmlconsoleedit.h"
 
 #include <coreplugin/coreconstants.h>
-#include <utils/themehelper.h>
+#include <coreplugin/coreicons.h>
 
 #include <QPainter>
 #include <QTreeView>
@@ -72,9 +72,9 @@ namespace Internal {
 
 QmlConsoleItemDelegate::QmlConsoleItemDelegate(QObject *parent) :
     QStyledItemDelegate(parent),
-    m_logIcon(Utils::ThemeHelper::themedIcon(QLatin1String(Core::Constants::ICON_INFO))),
-    m_warningIcon(Utils::ThemeHelper::themedIcon(QLatin1String(Core::Constants::ICON_WARNING))),
-    m_errorIcon(Utils::ThemeHelper::themedIcon(QLatin1String(Core::Constants::ICON_ERROR))),
+    m_logIcon(Core::Icons::INFO.icon()),
+    m_warningIcon(Core::Icons::WARNING.icon()),
+    m_errorIcon(Core::Icons::ERROR.icon()),
     m_expandIcon(QLatin1String(":/qmljstools/images/expand.png")),
     m_collapseIcon(QLatin1String(":/qmljstools/images/collapse.png")),
     m_prompt(QLatin1String(":/qmljstools/images/prompt.png")),