[javadoc][snippet] IDEA-285783 Add snippet to allowed javadoc tags

GitOrigin-RevId: 326a6039748ff843277f9731853d06e6ac9cc417

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/javaDoc/SnippetInlineTag.java

@@ -0,0 +1,15 @@
+/**
+ * {@snippet lang=JAVA :
+ *   public class ShowOptional {
+ *     void show(Optional<String> v) {
+ *         // @start region="example"
+ *         if (v.isPresent()) {
+ *             System.out.println("v: " + v.get());
+ *         }
+ *         // @end
+ *     }
+ *   }
+ * }
+ */
+class Main {
+}