svm: make checkstyle happy

Author: zapster

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/heap/Target_java_lang_ref_ReferenceQueue.java

@@ -35,6 +35,8 @@
 import com.oracle.svm.core.jdk.JDKLatest;
 import jdk.graal.compiler.serviceprovider.JavaVersionUtil;
 
+// Checkstyle: stop
+
 @TargetClass(ReferenceQueue.class)
 final class Target_java_lang_ref_ReferenceQueue<T> {
     @Alias //
@@ -60,3 +62,4 @@ final class Helper_java_lang_ref_ReferenceQueue {
     public static final Target_java_lang_ref_ReferenceQueue<Object> NULL_QUEUE = (JavaVersionUtil.JAVA_SPEC > 21 ? Target_java_lang_ref_ReferenceQueue.NULL_QUEUE
                     : Target_java_lang_ref_ReferenceQueue.NULL);
 }
+// CheckStyle: resume