Mark next_code_link as weak in heap profiler.

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 fdaf9fa6c9a7fa111848b0b20bc57f39aa087fe4..23472a571ab2d3aa4f9da30b56dfbfb7c6f33f97 100644
--- a/test/cctest/test-heap-profiler.cc
+++ b/test/cctest/test-heap-profiler.cc
@@ -344,6 +344,15 @@ TEST(HeapSnapshotCodeObjects) {
       GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared");
   CHECK_NE(NULL, lazy_code);
 
+  // Check that there's no strong next_code_link. There might be a weak one
+  // but might be not, so we can't check that fact.
+  const v8::HeapGraphNode* code =
+      GetProperty(compiled_code, v8::HeapGraphEdge::kInternal, "code");

[yurys, 2014/01/27 15:50:57]

Can we force presence of the weak link in the test?

[alph, 2014/01/29 13:41:33]

I'm not sure how to do that. Once I find a way, I'll update the test.

+  CHECK_NE(NULL, code);
+  const v8::HeapGraphNode* next_code_link =
+      GetProperty(code, v8::HeapGraphEdge::kInternal, "code");
+  CHECK_EQ(NULL, next_code_link);
+
   // Verify that non-compiled code doesn't contain references to "x"
   // literal, while compiled code does. The scope info is stored in FixedArray
   // objects attached to the SharedFunctionInfo.