Assertion reports wrong line number

[bstrie]

Test case:

fn dummy() {
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
    // padding
}

fn main() {
                          // oopsie
    for [1,2,3,4,5].slice(3,1).each |x| { log(error, x); }  // Line 20, not line 1!
    assert true == false;  // This reports line 21 if you comment out the above line
}

Output (with incorrect line number):

rust: task failed at 'Assertion start <= end failed', fail.rs:1

Expected output:

rust: task failed at 'Assertion start <= end failed', fail.rs:20

[bstrie]

Just verified that this bug is still present.

[pcwalton]

This is definitely not backwards incompatible.

[alexcrichton]

I think this has been fixed now, when I used error!(x) instead of log(error, x) I got:

rust: task failed at 'assertion failed: start <= end', /Users/alex/code/rust-opt/src/libstd/vec.rs:743

Which I believe is what's intended.