Fix node close stopwatch usage (elastic#41918)

The close method in Node uses a StopWatch to time to closing of
various services. However, the call to log the timing was made before
any of the services had been closed and therefore no timing would be
printed out. This change moves the timing log call to be a closeable
that is the last item closed.

server/src/main/java/org/elasticsearch/node/Node.java

@@ -839,13 +839,15 @@ public synchronized void close() throws IOException {
         // Don't call shutdownNow here, it might break ongoing operations on Lucene indices.
         // See https://issues.apache.org/jira/browse/LUCENE-7248. We call shutdownNow in
         // awaitClose if the node doesn't finish closing within the specified time.
-        toClose.add(() -> stopWatch.stop());
+        toClose.add(() -> stopWatch.stop().start("node_environment"));
 
         toClose.add(injector.getInstance(NodeEnvironment.class));
+        toClose.add(() -> stopWatch.stop().start("page_cache_recycler"));
         toClose.add(injector.getInstance(PageCacheRecycler.class));
+        toClose.add(stopWatch::stop);
 
         if (logger.isTraceEnabled()) {
-            logger.trace("Close times for each service:\n{}", stopWatch.prettyPrint());
+            toClose.add(() -> logger.trace("Close times for each service:\n{}", stopWatch.prettyPrint()));
         }
         IOUtils.close(toClose);
         logger.info("closed");