Find: Show number of replaced items after replace all

Show a fading indicator over the editor, or over the main window in case
of global search & replace.

Change-Id: I84a982bcfed558c0f84c08c3625a0cad4c5409d6
Task-number: QTCREATORBUG-3494
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/libs/utils/fadingindicator.h

@@ -40,7 +40,13 @@
 namespace Utils {
 namespace FadingIndicator {
 
-QTCREATOR_UTILS_EXPORT void showText(QWidget *parent, const QString &text);
+enum TextSize {
+    SmallText,
+    LargeText
+};
+
+QTCREATOR_UTILS_EXPORT void showText(QWidget *parent, const QString &text,
+                                     TextSize size = LargeText);
 QTCREATOR_UTILS_EXPORT void showPixmap(QWidget *parent, const QString &pixmap);
 
 } // FadingIndicator