Merge pull request #1477 from mgreter/additional-libsass-spec-2633

Extend libsass spec test for issue 2633

Author: mgreter

spec/libsass-closed-issues/issue_2633.hrx

@@ -7,7 +7,41 @@ $result1: selector-unify($sel1, $sel2);
   /* nothing */
 }
 
+.a {
+  color: blue;
+  & > * {
+    @at-root #{selector-unify(&, '.b')} {
+      color: red;
+    }
+  }
+}
+
+.a, .b {
+  color: blue;
+  & > * {
+    @at-root #{selector-unify(&, '.c, .d')} {
+      color: red;
+    }
+  }
+}
+
 <===> output.css
 .something__child + .something__child--mod1.something__child--mod2 {
   /* nothing */
 }
+
+.a {
+  color: blue;
+}
+
+.a > .b {
+  color: red;
+}
+
+.a, .b {
+  color: blue;
+}
+
+.a > .c, .a > .d, .b > .c, .b > .d {
+  color: red;
+}