kotlin-fork/annotations/com/intellij/ide/util/annotations.xml

<root>
  <item name='com.intellij.ide.util.FileStructurePopup com.intellij.ui.treeStructure.Tree getTree()'>
    <annotation name='org.jetbrains.annotations.NotNull'/>
  </item>
  <item name='com.intellij.ide.util.FileStructurePopup com.intellij.ui.treeStructure.filtered.FilteringTreeBuilder getTreeBuilder()'>
    <annotation name='org.jetbrains.annotations.NotNull'/>
  </item>
  <item name='com.intellij.ide.util.PsiElementListCellRenderer java.lang.String getElementText(T) 0'>
    <annotation name='org.jetbrains.annotations.NotNull'/>
  </item>
    <item name='com.intellij.ide.util.PsiElementListCellRenderer java.util.Comparator&lt;T&gt; getComparator()'>
        <annotation name='org.jetbrains.annotations.NotNull'/>
    </item>
</root>