[racket] online check syntax error display tweak

Okay, I've pushed a change that does part of this. No keystroke yet,
but you can at least see how things look with the mouseovers.

Robby

On Fri, Sep 9, 2011 at 1:01 PM, John Clements <clements at brinckerhoff.org> wrote:
>
> On Sep 9, 2011, at 9:20 AM, Robby Findler wrote:
>
>> On Fri, Sep 9, 2011 at 11:05 AM, Vincent St-Amour <stamourv at ccs.neu.edu> wrote:
>>> At Fri, 9 Sep 2011 10:58:23 -0500,
>>> Robby Findler wrote:
>>>> I thought about that, but I didn't want it to overlap the text and I
>>>> didn't want it to slide everything over to make space.
>>>
>>> What about horizontal lines before and after the relevant line,
>>> running across the whole editor. Finding the relevant code becomes a
>>> matter of following the lines. Grant Rettke's IntelliJ screenshot does
>>> something similar, and I think it helps.
>>>
>>>> What if there was a keybinding that jumped you to the right place?
>>>
>>> That would be great too. Emacs uses C-x ` for that.
>>
>> How about a keystroke to jump to the place plus it colors things in
>> when you mouse over the right thingy in the right margin?
>
> +1
>
>