class RuboCop::Cop::Lint::LiteralInInterpolation

def ends_heredoc_line?(node)
  grandparent = node.parent.parent
  return false unless grandparent&.dstr_type? && grandparent&.heredoc?
  line = processed_source.lines[node.last_line - 1]
  line.size == node.loc.last_column + 1
end