Provide named links to code objects in heap snapshot.

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 f5257e67033ca91e747f2e00c9d886bfe235d62b..46ad60613d1ce2d75c13cc0cb8799a2429fd9e66 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -894,6 +894,11 @@ class IndexedReferencesExtractor : public ObjectVisitor {
         parent_(parent),
         next_index_(1) {
   }
+  void VisitCodeEntry(Address entry_address) {
+     Code* code = Code::cast(Code::GetObjectFromEntryAddress(entry_address));

[yurys, 2013/07/16 18:26:10]

Can we have a test for this?

[alph, 2013/07/17 10:08:22]

Sure.

+     generator_->SetInternalReference(parent_obj_, parent_, "code", code);
+     generator_->TagObject(code, "(code)");
+  }
   void VisitPointers(Object** start, Object** end) {
     for (Object** p = start; p < end; p++) {
       if (CheckVisitedAndUnmark(p)) continue;