Bug 31957 Refactor/move doesn't remember non-java files
When refactoring with "rename", the list of non-java files is remembered from use to use. When using "move", the previous settings are ignored, and the last "rename" settings are used. This is based on the M5 build.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/SelectionTransferDropAdapter.java
return false;
		if (!(element instanceof IJavaElement))
			return false;
		if (element instanceof ICompilationUnit)
			return false;
		
		return true;	
	}
			
	private boolean canCopyElements() {
		if (fCanCopyElements == 0) {
			fCanCopyElements= 2;
			if (!canActivate(fCopyRefactoring))
				fCanCopyElements= 1;
		}
		return fCanCopyElements == 2;
	}		
	
	private void handleDropCopy(final Object target, DropTargetEvent event) throws JavaModelException{
		if (canPasteSourceReferences(target)){
			pasteSourceReferences(target, event);
			return;
		}
		
		SelectionDispatchAction action= ReorgActionFactory.createDnDCopyAction(fElements, ResourceUtil.getResource(target));
		action.run();
	}
	
	
	private static class DragNDropMoveAction extends JdtMoveAction{