Fix test for unique headings to not cause the empty-rule error

Author: Frank van Gemeren

src/rules/empty-rules.js

@@ -28,12 +28,6 @@ CSSLint.addRule({
         parser.addListener("endrule", function(event) {
             var selectors = event.selectors;
 
-            // If we ignore lines, we end up without rules.
-            // this prevents the triggering of the empty rule. The question is if this is wanted behavior.
-            if (reporter.ignore.length) {
-              return;
-            }
-
             if (count === 0) {
                 reporter.report("Rule is empty.", selectors[0].line, selectors[0].col, rule);
             }

tests/rules/unique-headings.js

@@ -42,7 +42,7 @@
         },
 
         "Ignore should remove rollup warning messages for unique headings": function() {
-            var report = CSSLint.verify("/* csslint ignore:start */\nh1 {}\nh1 {}/* csslint ignore:end */h2 {color: #fff}\n");
+            var report = CSSLint.verify("/* csslint ignore:start */\nh1 {color: #f0f}\nh1 {color: #ff0}/* csslint ignore:end */h2 {color: #fff}\n");
             Assert.areEqual(0, report.messages.length);
         }