Xcode 6.1 if/else/for/switch statements not autocompleting (Swift only)

I am not experiencing the autocomplete problem described in every other post. Normal function autocomplete works just fine. My issue is the version of Xcode I am running (6.1, Swift) will not autocomplete / auto-suggest any basic program statement (if, for, switch, do, etc.). If I type "if" for example, after a few seconds the suggestion menu pops up; however, there is no documentation in the window which would normally describe a statement's function (while at the same time presenting an auto laid-out example to fill in).

If I try a project in the same version of Xcode in Objective-C, these basic program statements complete just fine.

I have already:

1) Make sure my Settings are set to auto-suggest completions

2) Make sure I have cleared DerivedData and everything else suggested in previous posts

3) Reinstalled Xcode & restarted Mac countless times

4) Downloaded all latest "iOS 8.1, Xcode 6.1" documentation from "Xcode -> Preferences -> Documentation"

This used to work!! Arrgh. Any suggestions? Thank you.