FilteredElementList - Exception: RangeError: -1 must be greater than or equal to 0

[DartBot]

This issue was originally filed by @financecoding

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What steps will reproduce the problem?

1. https://gist.github.com/4156482

What is the expected output? What do you see instead?
Expected collection size to be zero, instead a RangeError is thrown. The problem seems to be in the setter.
void set length(int newLength);

What version of the product are you using? On what operating system?
Dart Editor version 0.2.4_r15130
Dart SDK version 0.2.4.2_r15130

Please provide any additional information below.

[dgrove]

Set owner to @blois.
Added Area-Dart2JS, Triaged labels.

[dgrove]

Removed Area-Dart2JS label.
Added Area-HTML label.

[blois]

FilteredElementList should not be a fully public API- probably needs to move to html_common.

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Added this to the M2 milestone.

[blois]

Added Accepted label.

[blois]

I've fixed the length issue, but unfortunately this class was not intended to be public and has been moved.

In general this class is a bit odd as it's not a perfect adapter from List<Node> to List<Element>- I would recommend just filtering the collection rather than providing a live wrapper as this does.

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Added Fixed label.