Use atom! in place of Atom::from_slice where necessary

[Manishearth]

No description provided.

[hoppipolla-critic-bot]

Critic review: https://critic.hoppipolla.co.uk/r/3248

This is an external review system which you may optionally use for the code review of your pull request.

In order to help critic track your changes, please do not make in-place history rewrites (e.g. via git rebase -i or git commit --amend) when updating this pull request.

[jdm]

dom/htmlserializer.rs:21:5: 21:23 error: unused import
dom/htmlserializer.rs:21 use string_cache::Atom;

For shame!

[Manishearth]

Heh, I was unable to test this due to a broken green-rs. Will fix :)

[Manishearth]

r=jdm

[jdm]

@bors: retry

• servo#3595

[Manishearth]

@bors: retry

[Manishearth]

@bors: retry

[jdm]

@bors: retry

• servo#3595

[Manishearth]

(still can't test, build 2 broken and build 1 is doing activation stuff. But this should be the only unused import)

[bors-servo]

saw approval from jdm
at Manishearth@5349193

[bors-servo]

merging Manishearth/servo/atomify = 5349193 into auto

[bors-servo]

Manishearth/servo/atomify = 5349193 merged ok, testing candidate = d48b05d

[bors-servo]

some tests failed:
failure: http://build.servo.org/builders/linux2/builds/37

[bors-servo]

saw approval from jdm
at Manishearth@5349193

[bors-servo]

saw approval from jdm
at Manishearth@5349193

[bors-servo]

merging Manishearth/servo/atomify = 5349193 into auto

[bors-servo]

Manishearth/servo/atomify = 5349193 merged ok, testing candidate = 60dfb65

[bors-servo]

all tests pass:
success: http://build.servo.org/builders/linux1/builds/46
success: http://build.servo.org/builders/linux2/builds/46
success: http://build.servo.org/builders/android/builds/113
success: http://build.servo.org/builders/mac1/builds/263
success: http://build.servo.org/builders/mac2/builds/263

[bors-servo]

fast-forwarding master to auto = 60dfb65