SwitchBackwardMigrationInspection: add test for throwing exception in branch

java/java-tests/testData/inspection/switchExpressionBackwardMigration/afterSwitchThrowing.java

@@ -0,0 +1,15 @@
+// "Replace with old style 'switch' statement" "true"
+import java.util.*;
+
+public class GenerateThrow {
+  void foo(int i) {
+      int res;
+      switch (i) {
+          case 0:
+              res = 1;
+              break;
+          default:
+              throw new IllegalArgumentException();
+      }
+  }
+}

java/java-tests/testData/inspection/switchExpressionBackwardMigration/beforeSwitchThrowing.java

@@ -0,0 +1,11 @@
+// "Replace with old style 'switch' statement" "true"
+import java.util.*;
+
+public class GenerateThrow {
+  void foo(int i) {
+    int res = <caret>switch (i) {
+      case 0 -> 1;
+      default -> throw new IllegalArgumentException();
+    };
+  }
+}