update to higlight.js 8.4

vendor/assets/javascripts/highlight_js/languages/twig.js

@@ -0,0 +1,67 @@
+/*
+Language: Twig
+Requires: xml.js
+Author: Luke Holder <lukemh@gmail.com>
+Description: Twig is a templating language for PHP
+Category: template
+*/
+
+function(hljs) {
+  var PARAMS = {
+    className: 'params',
+    begin: '\\(', end: '\\)'
+  };
+
+  var FUNCTION_NAMES = 'attribute block constant cycle date dump include ' +
+                  'max min parent random range source template_from_string';
+
+  var FUNCTIONS = {
+    className: 'function',
+    beginKeywords: FUNCTION_NAMES,
+    relevance: 0,
+    contains: [
+      PARAMS
+    ]
+  };
+
+  var FILTER = {
+    className: 'filter',
+    begin: /\|[A-Za-z]+:?/,
+    keywords:
+      'abs batch capitalize convert_encoding date date_modify default ' +
+      'escape first format join json_encode keys last length lower ' +
+      'merge nl2br number_format raw replace reverse round slice sort split ' +
+      'striptags title trim upper url_encode',
+    contains: [
+      FUNCTIONS
+    ]
+  };
+
+  var TAGS = 'autoescape block do embed extends filter flush for ' +
+    'if import include macro sandbox set spaceless use verbatim';
+
+  TAGS = TAGS + ' ' + TAGS.split(' ').map(function(t){return 'end' + t}).join(' ');
+
+  return {
+    aliases: ['craftcms'],
+    case_insensitive: true,
+    subLanguage: 'xml', subLanguageMode: 'continuous',
+    contains: [
+      {
+        className: 'comment',
+        begin: /\{#/, end: /#}/
+      },
+      {
+        className: 'template_tag',
+        begin: /\{%/, end: /%}/,
+        keywords: TAGS,
+        contains: [FILTER, FUNCTIONS]
+      },
+      {
+        className: 'variable',
+        begin: /\{\{/, end: /}}/,
+        contains: [FILTER, FUNCTIONS]
+      }
+    ]
+  };
+}