[zamalek]

Visual Studio does this automatically.

1. View -> Task List

2. At the top of the task list click the drop-down that is by default set to "User Tasks" and choose "Comments."

You can also customize the trigger words[1]. I very rarely use the feature myself as failing unit tests are far superior when compared to TODOs.

[1]: https://msdn.microsoft.com/en-us/library/zce12xx2.aspx

[stygiansonic]

Eclipse has this as well; the feature is called "Task Tags" under General->Editors->Structured Text Editors in preferences. (Can just search for "task" in Preferences; Eclipse settings are a nightmare)

You can also configure the text for each tag (TODO, FIXME, etc.) as well as the priority.

[wingerlang]

Xcode does this natively as well since somewhere recent, like 6.3 I think.