IDEA-196805 Warn about switch statement with single 'default'

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

@@ -0,0 +1,8 @@
+// "Unwrap 'switch' statement" "true"
+class X {
+  String test(char c) {
+      if(c == 'a') {
+          System.out.println("foo");
+        }
+  }
+}