NO!
The currently accepted answer suggests that IDE tags would be appropriate when the question is a sample of code that serves as an extension or plugin to the IDE. But if this is the case, are we limiting this option purely to IDEs?
Are there going to be these sorts of questions frequently enough to warrant the tag? Between VS and Eclipse tags, there are 10 total questions and some of them very well could be tagged inappropriately (I didn't look that closely).
But even if this is the case, why are we limiting this to just IDEs? Should we create a tag for every piece of software that someone writes an extension for?
If I create a mod for Minecraft, should I create a tag for Minecraft? If I create a plugin for Notepad++, should I create a tag for that?
Moreover, while I don't think that answers should determine how a question is tagged, a question's tag should lead answerers toward what topics the questioner is perhaps most interested in feedback in, or what the question is about. Of all the questions tagged with VisualStudio or Eclipse, do any of the answers to these questions make any sort of comments that would be explicitly specific to these programs?
And finally, if the code being reviewed is a plugin or extension to an IDE, isn't the title going to be enough information to convey this fact?
For as long as the policy remains that IDE tags are okay, I figured I'd start a list of the questions which the IDE tag has had to be removed because someone thought you just tagged with whatever IDE you're using. Note, this list was started on April 6, 2015, and I don't feel like trekking back through time to compile any instance before now. Moreover, this list will almost certainly be incomplete. But here's the beginning of the list:
https://codereview.stackexchange.com/revisions/86074/1