Update rust-selectors

[SimonSapin]

r? @Ms2ger

servo/rust-selectors#33

[highfive]

Warning

• These commits modify unsafe code. Please review it carefully!

[hoppipolla-critic-bot]

Critic review: https://critic.hoppipolla.co.uk/r/5381

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[Ms2ger]

Reviewed 12 of 12 files at r1.
Review status: all files reviewed at latest revision, 6 unresolved discussions, all commit checks successful.

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^{components/layout/css/matching.rs, line 230 [r1] (raw file):}
let element = match...

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^{components/layout/css/matching.rs, line 508 [r1] (raw file):}
Followup to implement this on Element instead?

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^{components/layout/css/matching.rs, line 510 [r1] (raw file):}
match parent_node.as_element()?

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^{components/layout/wrapper.rs, line 71 [r1] (raw file):}
Unused

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^{components/layout/wrapper.rs, line 251 [r1] (raw file):}
Not anymore

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^{components/layout/wrapper.rs, line 255 [r1] (raw file):}
.map()?

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Comments from the review on Reviewable.io

[SimonSapin]

Review status: all files reviewed at latest revision, 6 unresolved discussions, all commit checks successful.

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^{components/layout/css/matching.rs, line 230 [r1] (raw file):}
Done.

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^{components/layout/css/matching.rs, line 508 [r1] (raw file):}
#6476

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^{components/layout/css/matching.rs, line 510 [r1] (raw file):}
parent_node as that point is Option<LayoutNode>, we can’t call as_element on it yet.

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^{components/layout/wrapper.rs, line 71 [r1] (raw file):}
It is used to call methods like prev_sibling.

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^{components/layout/wrapper.rs, line 251 [r1] (raw file):}
Fixed.

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^{components/layout/wrapper.rs, line 255 [r1] (raw file):}
Done.

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Comments from the review on Reviewable.io

[Ms2ger]

Reviewed 2 of 2 files at r2.
Review status: all files reviewed at latest revision, all discussions resolved, all commit checks successful.

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Comments from the review on Reviewable.io

[Ms2ger]

-S-awaiting-review +S-awaiting-merge

@bors-servo r+

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Review status: all files reviewed at latest revision, all discussions resolved, all commit checks successful.

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Comments from the review on Reviewable.io

[bors-servo]

📌 Commit 9e1a674 has been approved by Ms2ger

[bors-servo]

⌛ Testing commit 9e1a674 with merge c331db1...

[bors-servo]

☀️ Test successful - android, gonk, linux1, linux2, linux3, mac1, mac2, mac3