Verify that sourcemap sources are mapped with non-exact match.

Binding created: {
       network: http://127.0.0.1:8000/inspector/persistence/resources/s.css
    fileSystem: file:///var/www/dist/s.css
    exactMatch: true
}
Binding created: {
       network: http://127.0.0.1:8000/inspector/persistence/resources/s.scss
    fileSystem: file:///var/www/src/s.scss
    exactMatch: false
}
Mapping has stabilized.

