Bug 97921 [typing] CompilationUnitEditor.TabConvertor should use project dependent formatter settings
with 3.1 RC1, In the code formatter I set tab policy to spaces only, indentation size = 2, and tab size = 8. when I hit the tab key, 2 spaces are added to the line instead of going to an 8 space (tab) boundary.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
* @see org.eclipse.jface.text.source.ISourceViewerExtension2#unconfigure()
		 * @since 3.0
		 */
		public void unconfigure() {
			if (fCorrectionAssistant != null) {
				fCorrectionAssistant.uninstall();
				fCorrectionAssistant= null;
			}
			super.unconfigure();
		}
		public void insertTextConverter(ITextConverter textConverter, int index) {
			throw new UnsupportedOperationException();
		}
		public void addTextConverter(ITextConverter textConverter) {
			if (fTextConverters == null) {
				fTextConverters= new ArrayList(1);
				fTextConverters.add(textConverter);
			} else if (!fTextConverters.contains(textConverter))
				fTextConverters.add(textConverter);
		}
		public void removeTextConverter(ITextConverter textConverter) {
			if (fTextConverters != null) {
				fTextConverters.remove(textConverter);
				if (fTextConverters.size() == 0)
					fTextConverters= null;
			}
		}
		/*
		 * @see TextViewer#customizeDocumentCommand(DocumentCommand)
		 */