DMD Symbol Reference Analysis Pass

[Andrei Alexandrescu via Digitalmars-d]

On 5/28/15 2:05 PM, "Per =?UTF-8?B?Tm9yZGzDtnci?= 
<per.nordlow at gmail.com>" wrote:
>> How faster is bylinefast compared to byline (after the recent
>> improvements)? -- Andrei
>
> About 3 times in my measurements.

Cool! What are the incompatibilities keeping it from replacing byLine? 
-- Andrei