private static List<PsiReferenceExpression> findReferences(@NotNull PsiLocalVariable variable) {
    PsiElement outerCodeBlock = PsiUtil.getVariableCodeBlock(variable, null);
    if (outerCodeBlock == null) return emptyList();
    List<PsiReferenceExpression> references = new SmartList<>();
    outerCodeBlock.accept(new JavaRecursiveElementVisitor() {
      @Override
      public void visitReferenceExpression(@NotNull PsiReferenceExpression expression) {
        super.visitReferenceExpression(expression);
        if (ExpressionUtils.isReferenceTo(expression, variable)) {
          references.add(expression);
        }
      }
    });
    return references;
  }
private static List<PsiReferenceExpression> findReferences(@NotNull PsiLocalVariable variable)