Bug 31818 [navigation] Open Type Hierarchy loses selection
build I20030211 - open a CU (e.g. BookmarkNavigator.java) - position the cursor between methods - F4 - it opens the type hierarchy on the class, but also changes the text editor's selection to select the class name It should not affect the text editor selection.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
new ToggleOrientationAction(this, VIEW_ORIENTATION_HORIZONTAL),
			new ToggleOrientationAction(this, VIEW_ORIENTATION_SINGLE)
		};
			
		fEnableMemberFilterAction= new EnableMemberFilterAction(this, false);
		fShowQualifiedTypeNamesAction= new ShowQualifiedTypeNamesAction(this, false);
		
		fFocusOnTypeAction= new FocusOnTypeAction(this);
		
		fPaneLabelProvider= new JavaUILabelProvider();
		
		fAddStubAction= new AddMethodStubAction();
		fFocusOnSelectionAction= new FocusOnSelectionAction(this);	
	
		fPartListener= new IPartListener2() {
			public void partVisible(IWorkbenchPartReference ref) {
				IWorkbenchPart part= ref.getPart(false);
				if (part == TypeHierarchyViewPart.this) {
					visibilityChanged(true);
				}
			}
			public void partHidden(IWorkbenchPartReference ref) {
				IWorkbenchPart part= ref.getPart(false);
				if (part == TypeHierarchyViewPart.this) {
					visibilityChanged(false);
				}
			}
			public void partActivated(IWorkbenchPartReference ref) {
				IWorkbenchPart part= ref.getPart(false);
				if (part instanceof IEditorPart)