Bug 53742 [templates] add different ui for linked mode depending on usage
Linked mode should allow to be configured programmatically to have a different ui. This would allow the instance that is setting up linked mode to determine how it will look like. Use case is auto-closing: the box is too disturbing there, while it may be good for more complex templates.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
IDocumentProvider provider= getDocumentProvider();
			if (provider != null) {
				IDocument document= provider.getDocument(getEditorInput());
				if (document != null) {
					int end= offset + length;
					int documentLength= document.getLength();
					return 0 <= offset  && offset <= documentLength && 0 <= end && end <= documentLength;
				}
			}
			return false;
		}
		
	}
	/**
	 * Remembers additional data for a given
	 * offset to be able restore it later.
	 * 
	 * @since 3.0
	 */
	private class RememberedOffset {
		
		private int fLine;
		
		private int fColumn;
		
		private IJavaElement fElement;
		
		private int fElementLine;
		
		/**