Revert "Revert "Set the selection to 1st CTabItem when it is created." (

#1087)"

This reverts commit 2a51e8c.

bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolder.java

@@ -768,6 +768,7 @@ void createItem (CTabItem item, int index) {
 	priority = newPriority;
 
 	if (items.length == 1) {
+		setSelection(0);
 		updateFolder(UPDATE_TAB_HEIGHT | REDRAW);
 	} else {
 		updateFolder(REDRAW_TABS);