@NotNull
    public DfType getDfTypeNoAssertions(PsiExpression expression) {
      if (expression == null) return DfType.TOP;
      DataflowPoint point = myDataAssertionsDisabled.get(new JavaExpressionAnchor(expression));
      return point == null ? DfType.TOP : point.myDfType;
    }
@NotNull
    public DfType getDfTypeNoAssertions(PsiExpression expression)