Bug 526888: [Resources] deleteFolder() not working

Change-Id: I5c85cac29fd69f4c161e19c7f73c0595969fff71
diff --git a/plugins/org.eclipse.ease.modules.platform/src/org/eclipse/ease/modules/platform/ResourcesModule.java b/plugins/org.eclipse.ease.modules.platform/src/org/eclipse/ease/modules/platform/ResourcesModule.java
index dc29bd8..7c7885f 100644
--- a/plugins/org.eclipse.ease.modules.platform/src/org/eclipse/ease/modules/platform/ResourcesModule.java
+++ b/plugins/org.eclipse.ease.modules.platform/src/org/eclipse/ease/modules/platform/ResourcesModule.java
@@ -338,7 +338,7 @@
 	@WrapToScript
 	public void deleteFolder(final Object source) throws CoreException {
 		final Object folder = ResourceTools.resolve(source, getScriptEngine().getExecutedFile());
-		if (ResourceTools.isFile(folder)) {
+		if (ResourceTools.isFolder(folder)) {
 			if (folder instanceof IFolder)
 				((IFolder) folder).delete(true, new NullProgressMonitor());