Honestly, I think this would just encourage writing sloppy code.
Using min(x, $) explicitly informs the reader of the code of exactly
what happens. It's harder to tell when it's implicit. Not only that,
but it can introduce bugs in your code - because while you might use
any upper bound, you're still not allowed to index beyond the length
of the array. Imagine this could was accepted by DMD:
void main()
{
auto userArgs = ["foo"]; // runtime arguments by some user input
auto firstTwo = userArgs[0..2]; // accepted by the new language change,
// implicitly
changes 2 to min(2, $)
// more code here
firstTwo[1] = "test"; // oops!
}
