Pull getLocation() method from Figure to IFigure interface.

If a method only works on the IFigure interface, it currently has to
either cast the object to a Figure, in order to be able to call
getLocation() or instead go via getBounds().getLocation().

To avoid this issue, this method has been pulled to the implemented
interface. A default implementation is used to for backwards
compatibility. The implementation inside the Figure is not removed, in
order to keep the 'final' modifier, but internally only calls the
default implementation.

The interface already has a setter method for the location. Also
providing a getter only seems natural.

org.eclipse.draw2d/src/org/eclipse/draw2d/Figure.java

@@ -768,8 +768,9 @@ public Color getLocalForegroundColor() {
 	 * @return The top-left corner of this Figure's bounds
 	 * @since 2.0
 	 */
+	@Override
 	public final Point getLocation() {
-		return getBounds().getLocation();
+		return IFigure.super.getLocation();
 	}
 
 	/**

org.eclipse.draw2d/src/org/eclipse/draw2d/IFigure.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2010 IBM Corporation and others.
+ * Copyright (c) 2000, 2023 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -374,6 +374,16 @@ public boolean isEmpty() {
 	 */
 	Color getLocalForegroundColor();
 
+	/**
+	 * Returns the top-left corner of this Figure's bounds.
+	 * 
+	 * @return The top-left corner of this Figure's bounds
+	 * @since 3.14
+	 */
+	default Point getLocation() {
+		return getBounds().getLocation();
+	}
+
 	/**
 	 * Returns a hint indicating the largest desireable size for the IFigure.
 	 * Returned Dimension is by value.