DevTools: [SASS] parse SCSS rules and their selectors.

third_party/WebKit/LayoutTests/inspector/sass/test-ast-scss-2-expected.txt

 Verifies SCSS AST in case of variables.
 
 $my-color: red;
 $my-font: Arial;
 $class-slug: box;
 
 @for $i from 1 through 3 {
     .#{$class-slug}#{$i} {
         background-color: $my-color;
         font-family: $my-font;
         /* color: $my-color; */
     }
 }
 
 === AST === 
-rule 0: "variables"
+rule 0: ""
     property 0
         name: "$my-color"
             range: {"startLine":0,"startColumn":0,"endLine":0,"endColumn":9}
         value: " red"
             range: {"startLine":0,"startColumn":10,"endLine":0,"endColumn":14}
         range: {"startLine":0,"startColumn":0,"endLine":0,"endColumn":15}
         disabled: false
     property 1
         name: "$my-font"
             range: {"startLine":1,"startColumn":0,"endLine":1,"endColumn":8}
         value: " Arial"
             range: {"startLine":1,"startColumn":9,"endLine":1,"endColumn":15}
         range: {"startLine":1,"startColumn":0,"endLine":1,"endColumn":16}
         disabled: false
     property 2
         name: "$class-slug"
             range: {"startLine":2,"startColumn":0,"endLine":2,"endColumn":11}
         value: " box"
             range: {"startLine":2,"startColumn":12,"endLine":2,"endColumn":16}
         range: {"startLine":2,"startColumn":0,"endLine":2,"endColumn":17}
         disabled: false
-rule 1: "properties"
+rule 1: ".#{$class-slug}#{$i}"
     property 0
         name: "background-color"
             range: {"startLine":6,"startColumn":8,"endLine":6,"endColumn":24}
         value: " $my-color"
             range: {"startLine":6,"startColumn":25,"endLine":6,"endColumn":35}
         range: {"startLine":6,"startColumn":8,"endLine":6,"endColumn":36}
         disabled: false
     property 1
         name: "font-family"
             range: {"startLine":7,"startColumn":8,"endLine":7,"endColumn":19}
         value: " $my-font"
             range: {"startLine":7,"startColumn":20,"endLine":7,"endColumn":29}
         range: {"startLine":7,"startColumn":8,"endLine":7,"endColumn":30}
         disabled: false
     property 2
         name: "color"
             range: {"startLine":8,"startColumn":11,"endLine":8,"endColumn":16}
         value: " $my-color"
             range: {"startLine":8,"startColumn":17,"endLine":8,"endColumn":27}
         range: {"startLine":8,"startColumn":8,"endLine":8,"endColumn":31}
         disabled: true
-rule 2: "mixins"
 ======
 Ranges OK.