plugins/IntelliLang/src/META-INF/intellilang-js-support.xml

<?xml version="1.0" encoding="iso-8859-1"?>

<idea-plugin version="2">

  <extensions defaultExtensionNs="org.intellij.intelliLang">
    <languageSupport implementation="com.intellij.plugins.intelliLang.inject.JSLanguageInjectionSupport"/>
    <injectionConfig config="resources/jsInjections.xml"/>
  </extensions>
  <extensions defaultExtensionNs="com.intellij">
    <patterns.patternClass className="com.intellij.lang.javascript.patterns.JSPatterns" alias="js"/>
  </extensions>
</idea-plugin>