Fix Kotlin unsigned long literal token

Author: flofriday

mode/clike.js

@@ -646,7 +646,7 @@ export const kotlin = clike({
   intendSwitch: false,
   indentStatements: false,
   multiLineStrings: true,
-  number: /^(?:0x[a-f\d_]+|0b[01_]+|(?:[\d_]+(\.\d+)?|\.\d+)(?:e[-+]?[\d_]+)?)(u|ll?|l|f)?/i,
+  number: /^(?:0x[a-f\d_]+|0b[01_]+|(?:[\d_]+(\.\d+)?|\.\d+)(?:e[-+]?[\d_]+)?)(ul?|l|f)?/i,
   blockKeywords: words("catch class do else finally for if where try while enum"),
   defKeywords: words("class val var object interface fun"),
   atoms: words("true false null this"),