Bug 6700 Code assist should not just beep
suggest to show a status message: Could not complete due to syntax errors. This is also better for accessability reasons.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
}
		}
		
		/**
		 * @see ITextInputListener#inputDocumentAboutToBeChanged(IDocument, IDocument)
		 */
		public void inputDocumentAboutToBeChanged(IDocument oldInput, IDocument newInput) {
			if (oldInput != null) {
				fHighlightBrackets.deactivate(false);
				fManager.uninstall(oldInput);
			}
		}
		
		/**
		 * @see ITextInputListener#inputDocumentChanged(IDocument, IDocument)
		 */
		public void inputDocumentChanged(IDocument oldInput, IDocument newInput) {
			if (newInput != null)
				fManager.install(newInput);
		}
	};
	
	
	class InternalSourceViewer extends SourceViewer {
		
		public InternalSourceViewer(Composite parent, IVerticalRuler ruler, int styles) {
			super(parent, ruler, styles);
		}
		
		public IContentAssistant getContentAssistant() {