Bug 92801 [content assist] additional info (javadoc) missing
I20050426-0849 The additional info (javadoc) is missing.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/JavaCompletionProposal2.java
IRegion widgetRange= extension.modelRange2WidgetRange(new Region(fRememberedStyleRange.start, fRememberedStyleRange.length));
			 		if (widgetRange != null)
			 			viewer2.invalidateTextPresentation(widgetRange.getOffset(), widgetRange.getLength());
			 	} else {
					viewer2.invalidateTextPresentation(fRememberedStyleRange.start + viewer.getVisibleRegion().getOffset(), fRememberedStyleRange.length);
			 	}
			} else
				viewer.invalidateTextPresentation();
		}
	}
	private void updateStyle(ITextViewer viewer) {
		StyledText text= viewer.getTextWidget();
		if (text == null || text.isDisposed())
			return;
		int widgetCaret= text.getCaretOffset();
		int modelCaret= 0;
		if (viewer instanceof ITextViewerExtension5) {
			ITextViewerExtension5 extension= (ITextViewerExtension5) viewer;
			modelCaret= extension.widgetOffset2ModelOffset(widgetCaret);
		} else {
			IRegion visibleRegion= viewer.getVisibleRegion();
			modelCaret= widgetCaret + visibleRegion.getOffset();
		}
		if (modelCaret >= getReplacementOffset() + getReplacementLength()) {
			repairPresentation(viewer);
			return;
		}
		int offset= widgetCaret;
		int length= getReplacementOffset() + getReplacementLength() - modelCaret;
		Color foreground= getForegroundColor(text);