Bug 21013 [PropertiesView] ComboBoxPropertyDescriptor should provide a defualt label provider
ComboBoxPropertyDescriptor requires an array of string values in its contructor. These are used to display in the combo box cell editor. Typically clients must also supply a label provider with the same array of values in order to show the correct value when the cell editor is not active. The descriptor should create a default label provider based on the values passed in its constructor.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/properties/PropertyDescriptor.java
* selection.
 *
 * @param flag <code>true</code> to indicate always incompatible
 */
public void setAlwaysIncompatible(boolean flag) {
	incompatible = flag;
}
/**
 * Sets the category for this property descriptor.
 * 
 * @param category the category for the descriptor, or <code>null</code> if none
 * @see #getCategory
 */
public void setCategory(String category) {
	this.category = category;
}
/**
 * Sets the description for this property descriptor.
 * The description should be limited to a single line so that it can be
 * displayed in the status line.
 * 
 * @param description the description, or <code>null</code> if none
 * @see #getDescription
 */
public void setDescription(String description) {
	this.description = description;
}
/**
 * Sets the the filter flags for this property descriptor.
 * The description should be limited to a single line so that it can be