<===> README.md
`@forward` should handle CSS in the same way as `@use`. We assume that they use
shared infrastructure, though, and as such only test basic cases.

<===>
================================================================================
<===> forward_only/input.scss
@forward "other";

<===> forward_only/_other.scss
a {b: c}

<===> forward_only/output.css
a {
  b: c;
}

<===>
================================================================================
<===> once/multiple_forwards/input.scss
@forward "other";
@forward "other";
@forward "other";

<===> once/multiple_forwards/_other.scss
a {b: c}

<===> once/multiple_forwards/output.css
a {
  b: c;
}

<===>
================================================================================
<===> once/forward_and_use/input.scss
@forward "other";
@use "other";

<===> once/forward_and_use/_other.scss
a {b: c}

<===> once/forward_and_use/output.css
a {
  b: c;
}

<===>
================================================================================
<===> order/input.scss
@forward "other1";
@use "other2";
@forward "other3";

a {file: input}

<===> order/_other1.scss
a {file: other1}

<===> order/_other2.scss
a {file: other2}

<===> order/_other3.scss
a {file: other3}

<===> order/output.css
a {
  file: other1;
}

a {
  file: other2;
}

a {
  file: other3;
}

a {
  file: input;
}

<===>
================================================================================
<===> forward_into_import/input.scss
@forward "forwarded";

in-input {a: b}

<===> forward_into_import/_forwarded.scss
@import "imported";

in-forwarded {a: b}

<===> forward_into_import/_imported.scss
in-imported {a: b}

<===> forward_into_import/output.css
in-imported {
  a: b;
}

in-forwarded {
  a: b;
}

in-input {
  a: b;
}