timers: fix handling of cleared immediates

If current immediate has no callback, move on to the next one in
the queue.

Fixes: https://github.com/nodejs/node/issues/9756
PR-URL: https://github.com/nodejs/node/pull/9759
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/timers.js b/lib/timers.js
index a55e265f29..6d456da36f 100644
--- a/lib/timers.js
+++ b/lib/timers.js
@@ -580,8 +580,10 @@ function processImmediate() {
   while (immediate) {
     domain = immediate.domain;
 
-    if (!immediate._onImmediate)
+    if (!immediate._onImmediate) {
+      immediate = immediate._idleNext;
       continue;
+    }
 
     if (domain)
       domain.enter();