Separate clear stack and run it after each spec

[finishes #50197985][fix #109418332]
- Fixes #985
- Fixes #945
- Fixes #366

src/core/QueueRunner.js

@@ -42,11 +42,7 @@ getJasmineRequireObj().QueueRunner = function(j$) {
       }
     }
 
-    var runnerDone = iterativeIndex >= length;
-
-    if (runnerDone) {
-      this.clearStack(this.onComplete);
-    }
+    this.clearStack(this.onComplete);
 
     function attemptSync(queueableFn) {
       try {