IDEA-274822 [convert switch to if] fix: avoid calls to PsiSwitchLabelStatementBase.isDefaultCase

GitOrigin-RevId: e72998a2f37c21d4c78096da3c45d56f1d7fd2aa

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/switchDefault/afterSingleCaseDefault.java

@@ -0,0 +1,6 @@
+// "Unwrap 'switch'" "true"
+public class One {
+  void f1(String a) {
+      System.out.println("None");
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/switchDefault/beforeSingleCaseDefault.java

@@ -0,0 +1,8 @@
+// "Unwrap 'switch'" "true"
+public class One {
+  void f1(String a) {
+    sw<caret>itch (a) {
+      case default -> System.out.println("None");
+    }
+  }
+}