code: @SuppressWarnings("unchecked")
    public JSType createTypeFromCommentNode(Node n, String sourceName, StaticTypedScope scope) {
      return createFromTypeNodesInternal(n, sourceName, scope, true);
    }
docs: Creates a JSType from the nodes representing a type.
  
  @param n The node with type info.
  @param sourceName The source file name.
  @param scope A scope for doing type name lookups.