Does Eclipse have a way to search a whole project for some text like Xcode\'s \"find in project\" feature?
There is very nice tool "Eclipse Quicksearch" available. Checkout SpringSource Update Site for Eclipse i.e: http://dist.springsource.com/release/TOOLS/update/e4.6/ (you can try other versions replacing last part of URL with i.e. e4.4 or e4.5)
It works well with Neon Release (4.6.0). It gives you nice incremental text search with source file preview. I had no issues with it so far.
Usage: Alt + s "Quick Search Command" opens "Quick Text Search" dialog. You can select whether search should be case sensitive or not. Really good tool.