IDEA-194142 IDEA should recognize min/max usage with reversed order

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/comparatorCanBeSimplified/afterComparingMinMaxReversed.java

@@ -0,0 +1,12 @@
+// "Fix all 'Comparator can be simplified' problems in file" "true"
+import java.util.*;
+import java.util.stream.*;
+
+class Test {
+  void test(List<String> list) {
+    Collections.min(list, Comparator.naturalOrder());
+    list.stream().max(String.CASE_INSENSITIVE_ORDER);
+    list.stream().min(String.CASE_INSENSITIVE_ORDER);
+    Collector<String, ?, Optional<String>> c = Collectors.minBy(Comparator.comparing(String::length));
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/comparatorCanBeSimplified/beforeComparingMinMaxReversed.java

@@ -0,0 +1,12 @@
+// "Fix all 'Comparator can be simplified' problems in file" "true"
+import java.util.*;
+import java.util.stream.*;
+
+class Test {
+  void test(List<String> list) {
+    Collections.m<caret>ax(list, Comparator.reverseOrder());
+    list.stream().min(String.CASE_INSENSITIVE_ORDER.reversed());
+    list.stream().max(Collections.reverseOrder(String.CASE_INSENSITIVE_ORDER));
+    Collector<String, ?, Optional<String>> c = Collectors.maxBy(Comparator.comparing(String::length, Comparator.reverseOrder()));
+  }
+}