Bug 88397 [5.0] OpenAction does not select whole ITypeParameter
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
if (selectionProvider instanceof IPostSelectionProvider)  {
				IPostSelectionProvider provider= (IPostSelectionProvider) selectionProvider;
				provider.addPostSelectionChangedListener(this);
			} else  {
				selectionProvider.addSelectionChangedListener(this);
			}
		}
		/**
		 * Removes this selection changed listener from the given selection provider.
		 * 
		 * @param selectionProvider the selection provider
		 */
		public void uninstall(ISelectionProvider selectionProvider) {
			if (selectionProvider == null)
				return;
			
			if (selectionProvider instanceof IPostSelectionProvider)  {
				IPostSelectionProvider provider= (IPostSelectionProvider) selectionProvider;
				provider.removePostSelectionChangedListener(this);
			} else  {
				selectionProvider.removeSelectionChangedListener(this);
			}			
		}
	}
	/**
	 * Updates the Java outline page selection and this editor's range indicator.
	 * 
	 * @since 3.0
	 */
	private class EditorSelectionChangedListener extends AbstractSelectionChangedListener {