make (a < b < c) illegal?

[Walter Bright]

Right now, in D (as well as C and C++), when you see the expression:

	if (a < b < c)

what is your first thought? Mine is that it was written by a newbie who 
didn't realize that (a < b) returns true or false, and that it does NOT 
mean ((a < b) && (b < c)). The odds approach certainty that this is a 
logic error in the code, and even if it was intentional, it raises such 
a red flag that it shouldn't be used anyway.

Andrei has proposed (and I agreed) that this should be done away with in 
the language, i.e. comparison operators should no longer be associative. 
  It's a simple change to the grammar. If one really did want to write 
such code, it could be done with parentheses:

	if ((a < b) < c)

to get the original behavior. At least, that looks intentional.

I don't think this will break existing code that isn't already broken.