Update to cssparser 0.19, count line numbers during tokenization

[SimonSapin]

servo/rust-cssparser#177

Also simplify the ParseErrorReporter trait a bit.

---

This change is 

[highfive]

Heads up! This PR modifies the following files:

• @bholley: components/style/stylesheets/viewport_rule.rs, components/style/values/specified/calc.rs, components/style/stylesheets/rule_parser.rs, components/style/properties/properties.mako.rs, components/style/Cargo.toml and 10 more
• @canaltinova: components/style/stylesheets/viewport_rule.rs, components/style/values/specified/calc.rs, components/style/stylesheets/rule_parser.rs, components/style/properties/properties.mako.rs, components/style/Cargo.toml and 10 more
• @KiChjang: components/script/Cargo.toml, components/script_layout_interface/Cargo.toml, components/script_layout_interface/reporter.rs
• @fitzgen: components/script/Cargo.toml, components/script_layout_interface/Cargo.toml, components/script_layout_interface/reporter.rs
• @emilio: components/style/stylesheets/viewport_rule.rs, components/style/values/specified/calc.rs, components/style/stylesheets/rule_parser.rs, components/style/properties/properties.mako.rs, components/style/Cargo.toml and 12 more

[jdm]

@bors-servo: r+

[bors-servo]

📌 Commit 9554f5a has been approved by jdm

[emilio]

r=me

[emilio]

Oh, or r=jdm, I guess :)

[bors-servo]

⌛ Testing commit 9554f5a with merge 22383c4...

[bors-servo]

💔 Test failed - mac-dev-unit

[jdm]

error[E0412]: cannot find type `UrlExtraData` in this scope
  --> /Users/servo/buildbot/slave/mac-dev-unit/build/tests/unit/style/media_queries.rs:25:28
   |
25 |                     _url: &UrlExtraData,
   |                            ^^^^^^^^^^^^ not found in this scope
   |
help: possible candidate is found in another module, you can import it into scope
   |
29 | use style::stylesheets::UrlExtraData;
   |

error[E0412]: cannot find type `SourceLocation` in this scope
  --> /Users/servo/buildbot/slave/mac-dev-unit/build/tests/unit/style/media_queries.rs:26:32
   |
26 |                     _location: SourceLocation,
   |                                ^^^^^^^^^^^^^^ did you mean `SourcePosition`?
   |
help: possible candidate is found in another module, you can import it into scope
   |
29 | use cssparser::SourceLocation;
   |

error[E0412]: cannot find type `UrlExtraData` in this scope
  --> /Users/servo/buildbot/slave/mac-dev-unit/build/tests/unit/style/rule_tree/bench.rs:22:27
   |
22 |                     url: &UrlExtraData,
   |                           ^^^^^^^^^^^^ not found in this scope
   |
help: possible candidate is found in another module, you can import it into scope
   |
5  | use style::stylesheets::UrlExtraData;
   |

error[E0412]: cannot find type `SourceLocation` in this scope
  --> /Users/servo/buildbot/slave/mac-dev-unit/build/tests/unit/style/rule_tree/bench.rs:23:31
   |
23 |                     location: SourceLocation,
   |                               ^^^^^^^^^^^^^^ did you mean `SourcePosition`?
   |
help: possible candidate is found in another module, you can import it into scope
   |
5  | use cssparser::SourceLocation;
   |

error[E0412]: cannot find type `UrlExtraData` in this scope
   --> /Users/servo/buildbot/slave/mac-dev-unit/build/tests/unit/style/stylesheets.rs:274:27
    |
274 |                     url: &UrlExtraData,
    |                           ^^^^^^^^^^^^ not found in this scope
    |
help: possible candidate is found in another module, you can import it into scope
    |
37  | use style::stylesheets::UrlExtraData;

[SimonSapin]

Fixed.

@bors-servo r=jdm

[bors-servo]

📌 Commit 7382dad has been approved by jdm

[bors-servo]

⌛ Testing commit 7382dad with merge 845131c...

[bors-servo]

☀️ Test successful - android, arm32, arm64, linux-dev, linux-rel-css, linux-rel-wpt, mac-dev-unit, mac-rel-css1, mac-rel-css2, mac-rel-wpt1, mac-rel-wpt2, mac-rel-wpt3, mac-rel-wpt4, windows-msvc-dev
Approved by: jdm
Pushing 845131c to master...