DevTools: Fix missing message about the snapshot is too big.

src/heap-snapshot-generator.cc

Index: src/heap-snapshot-generator.cc
diff --git a/src/heap-snapshot-generator.cc b/src/heap-snapshot-generator.cc
index d22239f381353af4bbc74ea78aeb123280dfe48b..e937e14675bcbfbc638d3333b47cae32938aa962 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -2416,8 +2416,8 @@ HeapSnapshot* HeapSnapshotJSONSerializer::CreateFakeSnapshot() {
       "Actual snapshot size is %"  V8_PTR_PREFIX "u MB.",
       SnapshotSizeConstants<kPointerSize>::kMaxSerializableSnapshotRawSize / MB,
       (snapshot_->RawSnapshotSize() + MB - 1) / MB);
-  HeapEntry* message = result->AddEntry(HeapEntry::kString, text, 0, 4);
-  result->root()->SetIndexedReference(HeapGraphEdge::kElement, 1, message);

[yurys, 2013/04/18 07:05:41]

Can you add a test for this?

[alph, 2013/04/18 09:09:08]

To trigger this code execution I have to create a 6GB snapshot. I don't think
the test worths it.

+  HeapEntry* message = result->AddEntry(HeapEntry::kObject, text, 0, 4);
+  result->root()->SetNamedReference(HeapGraphEdge::kShortcut, "", message);
   result->FillChildren();
   return result;
 }