Fix default block matching for pseudo-element, it was mentioning

pseudo-class.

@@ -308,8 +308,8 @@ const compileMatcher = (ast: AST, selector: string): MatcherProducer => {
           case 'content':
             return (context, node, parent, i, debug, special) => special === PSEUDO_ELEMENTS.content
           default:
-            console.error('pseudo-class', nodeUtil.inspect({ selector, ast }, { depth: null, colors: true }))
-            throw new Error(`Unknown pseudo-class: ${ast.name}`)
+            console.error('pseudo-element', nodeUtil.inspect({ selector, ast }, { depth: null, colors: true }))
+            throw new Error(`Unknown pseudo-element: ${ast.name}`)
         }
       default:
         throw new Error(`Unhandled ast: ${ast.type}`)