Intellij Plugin breaks method inlining and variable extraction from inside if condition

从 issue 中的 Java 复现开始，调查 IntelliJ plugin 的格式化与 if 条件内的方法内联和变量提取之间的交互。启用 plugin 后复现该转换，并将其与禁用 plugin 时的结果进行比较；当重构不再插入不必要的 if (true)、报告错误或留下损坏的格式时，即表示完成。

Consider the following code and try inlining isEmpty2:

import java.util.Collection;
import java.util.List;

public class InliningWithJavaFormat {
  static boolean isEmpty(Collection<?> c) {
    return c == null || c.isEmpty();
  }

  static boolean isEmpty2(Collection<?> c) {
    return isEmpty(c);
  }

  public static void main(String[] args){
    var pojo = new MyPojo();
    if (pojo != null && !isEmpty2(pojo.getCollection())) {
      System.out.println("empty");
    }
  }

  static class MyPojo {
    Collection<String> getCollection() {
      return List.of();
    }
  }
}

Not only does it fail (without reporting it), but it adds an additional if (true):

  public static void main(String[] args){
    var pojo = new MyPojo();
    if (pojo != null && !isEmpty2(pojo.getCollection())) {
      if (true) {
        System.out.println("empty");
      }
    }
  }

with the plugin disabled, it works:

  public static void main(String[] args){
    var pojo = new MyPojo();
    if (pojo != null) {
      Collection<?> c = pojo.getCollection();
      if (!isEmpty(c)) {
        System.out.println("empty");
      }
    }
  }

(not the ideal result but at least it does not fail)

In addition, when I do that on my actual project I get an error notification from the plugin and the formatting gets broken:

(I did not try to reproduce this with an MRE, I guess it is a side effect of the first issue)