Do not mark dependent_code arrays as weak in heap snapshot.

test/cctest/test-heap-profiler.cc

Index: test/cctest/test-heap-profiler.cc
diff --git a/test/cctest/test-heap-profiler.cc b/test/cctest/test-heap-profiler.cc
index 637bda144b4b6666de0f322b083f1d02dd03318e..b0a2e002028cf9ebea642161a4245784abe51b0b 100644
--- a/test/cctest/test-heap-profiler.cc
+++ b/test/cctest/test-heap-profiler.cc
@@ -2824,7 +2824,7 @@ TEST(WeakContainers) {
   CHECK_NE(0, count);
   for (int i = 0; i < count; ++i) {
     const v8::HeapGraphEdge* prop = dependent_code->GetChild(i);
-    CHECK_EQ(v8::HeapGraphEdge::kWeak, prop->GetType());
+    CHECK_EQ(v8::HeapGraphEdge::kInternal, prop->GetType());
   }
 }