Bug 171415 [Viewers] Table viewer needs to clear label, image when items are reused
If an item is reused for a different element on a refresh, the table viewer needs to clear the label and image from the item being reused. This is necessary to communicate to the label provider that a new label is needed (i.e. the label provider may defer providing a label if decorators are not ready). This is what the tree viewer does. To see the problem, open the Java Browsing perspective and select a Java project. Then click between different packages. Notice that some of the labels in the Types list take a while to update. Opening one of these reveals that the label is showing the wrong text.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TableViewer.java
protected void doSetItemCount(int count) {
		table.setItemCount(count);
	}
	protected Item[] doGetItems() {
		return table.getItems();
	}
	protected int doGetColumnCount() {
		return table.getColumnCount();
	}
	protected Widget doGetColumn(int index) {
		return table.getColumn(index);
	}
	
	protected Item doGetItem(int index) {
		return table.getItem(index);
	}
	protected Item[] doGetSelection() {
		return table.getSelection();
	}
	protected int[] doGetSelectionIndices() {
		return table.getSelectionIndices();
	}
	protected void doClearAll() {
		table.clearAll();
	}
	protected void doRemove(int start, int end) {
		table.remove(start, end);
	}
	
	protected void doRemoveAll() {