regression: input[type=url] { ... } fails to parse

[asottile]

input.scss

input[type=url] {
  content: bar
}

Actual results

libsass 3.4.5 and libsass 3.5.0.beta.3-64-g5cb5

Error: Invalid CSS after "i": expected 1 selector or at-rule, was "input[type=url] {"
        on line 1 of test.scss
>> input[type=url] {
   ^

Expected result

libsass 3.4.4

input[type=url] {
  color: red; }

May also be related to: #2427

From bisect it appears to be this commit:

10398ed

10398ed299bffa7ccc32aace50dacbe1a51379a2 is the first bad commit
commit 10398ed299bffa7ccc32aace50dacbe1a51379a2
Author: Marcel Greter <marcel.greter@ocbnet.ch>
Date:   Sat May 20 19:01:04 2017 +0200

    Fix parser for urls looking like ruleset selectors (#2376)

[xzyfer]

Thanks @asottile, I'll take a look this weekend.

[asottile]

A workaround (I think?) is to use input[type="url"] { ... } instead.