[Issue 7177] $ should forward to length by default

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7177



--- Comment #21 from Steven Schveighoffer <schveiguy at yahoo.com> 2013-03-21 09:16:14 PDT ---
(In reply to comment #20)
> My point is that I have to opt out of that behavior.  This means it breaks my
> current code.

To expand on this point, I would say implementing opDollar by default to mean
.length should be semantically correct in all existing code that defines
indexing and length.  If not (and I think I've shown that it's not always
correct), it should not be done.  It breaks too much existing code otherwise. 
The gain is so little since aliasing already works.

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