Fix poor variable name

ajde/src/main/java/org/aspectj/ajde/ui/internal/TreeStructureViewBuilder.java

 			}
 		}
 		if (node.getChildren() != null) {
-			for (IProgramElement IProgramElement : node.getChildren()) {
-				if (acceptNode(IProgramElement, properties)) {
-					children.add(createViewNode(IProgramElement, properties));
+			for (IProgramElement child : node.getChildren()) {
+				if (acceptNode(child, properties)) {
+					children.add(createViewNode(child, properties));
 				}
 			}
 		}