Bug 123496 [IDE] Use operation validation API for IDE actions
We should use the Resources/Core operation validation API in the IDE actions for manipulating resources.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/actions/CopyFilesAndFoldersOperation.java
return;
			} catch (InvocationTargetException exception) {
				display(exception);
			}
		} else
			copyFileStores(stores, destinationPath, monitor);
		
		if (errorStatus != null) {
			displayError(errorStatus);
			errorStatus = null;
		}
	}
	/**
	 * Display the supplied status in an error dialog.
	 * 
	 * @param fileStatus
	 */
	private void displayError(final IStatus status) {
		messageShell.getDisplay().syncExec(new Runnable() {
			public void run() {
				ErrorDialog.openError(messageShell, getProblemsTitle(), null,
						status);
			}
		});
	}
	/**
	 * Creates a file or folder handle for the source resource as if it were to
	 * be created in the destination container.
	 * 
	 * @param destination