Even more algorithm usage in ProjectExplorer

Add Utils::transform and anyOf that take a member function pointer.
Remove bestElementOr it's unused.

Use declval<T> in transform's return type, because msvc does evaluate
T() and for types that don't have simple constructor this fails.
Add std::remove_reference since decltype returns a reference for
lvalues.

Change-Id: I22248b226748eeb27af0d300182d574438d7f756
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/projectexplorer/miniprojecttargetselector.cpp

@@ -864,12 +864,8 @@ void MiniProjectTargetSelector::doLayout(bool keepSize)
         onlySummary = true;
     } else {
         if (visibleLineCount < 3) {
-            foreach (Project *p, SessionManager::projects()) {
-                if (p->needsConfiguration()) {
-                    visibleLineCount = 3;
-                    break;
-                }
-            }
+            if (Utils::anyOf(SessionManager::projects(), &Project::needsConfiguration))
+                visibleLineCount = 3;
         }
         if (visibleLineCount)
             summaryLabelHeight = visibleLineCount * QFontMetrics(m_summaryLabel->font()).height()