[Qt-creator] Plugin to display compile errors warnings etc. inline

[Daniel Teske]

> I was hoping to be able to somehow add an Icon to the FIXME, TODOS.
You seem to be somewhat confused, so let me explain.

There are 3 categories at the moment:
TASK_CATEGORY_QML
TASK_CATEGORY_BUILDSYSTEM
TASK_CATEGORY_COMPILE

and 3 task types:
"error"
"warning"
"information".

Probably you want a new category:
TASK_CATEGORY_EDITORCOMMENTS (or whatever)

and also a few new task types for different comments.

Currently the second list is somewhat hardcoded in different places, for now 
simply add you stuff there and we'll figure out how to do that properly 
afterwards.

Also I think TASK_CATEGORY_BUILDSYSTEM an TASK_CATEGORY_COMPILE should probaby 
be the same.

> I am not quite sure right now if the "Build Issues" really is the correct
>  place for it. In terms of functionality it is: I can navigate the todos
>  like the warnings/errors which makes it consistent (and easy to implement
>  ;) )
> But on the other hand TODOS and FIXME entries are not really
>  "BuildIssues"...

I think that's fine. Obviously we need to rename the tab and work on the user 
interfaces and implementation a bit to make it feel good. 

E.g. clearing does the wrong thing atm.

daniel