Fix TestInternalWeakLists test

test/cctest/test-heap.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 
 #include <stdlib.h>
 
 #include "v8.h"
 
 #include "execution.h"
 #include "factory.h"
 #include "macro-assembler.h"
 #include "global-handles.h"
@@ skipping 1011 matching lines @@
 
   // Create a number of global contests which gets linked together.
   for (int i = 0; i < kNumTestContexts; i++) {
     ctx[i] = v8::Context::New();
     CHECK_EQ(i + 1, CountGlobalContexts());
 
     ctx[i]->Enter();
     ctx[i]->Exit();
   }
 
+  // Force compilation cache cleanup.
+  Heap::CollectAllGarbage(true);
+
   // Dispose the global contexts one by one.
   for (int i = 0; i < kNumTestContexts; i++) {
     ctx[i].Dispose();
     ctx[i].Clear();
 
     // Scavenge treats these references as strong.
     for (int j = 0; j < 10; j++) {
       Heap::PerformScavenge();
       CHECK_EQ(kNumTestContexts - i, CountGlobalContexts());
     }
@@ skipping 34 matching lines @@
   // with and without GCs while iterating the list.
   for (int i = 0; i < kNumTestContexts; i++) {
     ctx[i] = v8::Context::New();
     CHECK_EQ(i + 1, CountGlobalContexts());
     CHECK_EQ(i + 1, CountGlobalContextsWithGC(i / 2 + 1));
 
     ctx[i]->Enter();
     ctx[i]->Exit();
   }
 }