Bug 40785 [plan item] Overview ruler improvements
- navigation from ruler to editor - hovering over header area shows number of errors/warning (header annotations in general)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
length= name.length();
						}
					}
				} else if (reference instanceof IPackageDeclaration) {
					String name= ((IPackageDeclaration) reference).getElementName();
					if (name != null && name.length() > 0) {
						String content= reference.getSource();
						if (content != null) {
							offset= range.getOffset() + content.indexOf(name);
							length= name.length();
						}
					}
				}
				
				if (offset > -1 && length > 0) {
					
					try  {
						textWidget.setRedraw(false);
						sourceViewer.revealRange(offset, length);
						sourceViewer.setSelectedRange(offset, length);
					} finally {
						textWidget.setRedraw(true);
					}
					
					markInNavigationHistory();
				}
				
			} catch (JavaModelException x) {
			} catch (IllegalArgumentException x) {
			}