Implemented function that returns code age.

src/mark-compact.cc

Index: src/mark-compact.cc
diff --git a/src/mark-compact.cc b/src/mark-compact.cc
index dc2db4b096b76ddb7c36532a51be7106c9b6838b..c2e7cf33ac0e973fcc0b96c38cb0d0317347588c 100644
--- a/src/mark-compact.cc
+++ b/src/mark-compact.cc
@@ -1004,7 +1004,8 @@ void CodeFlusher::ProcessJSFunctionCandidates() {
     if (!code_mark.Get()) {
       if (FLAG_trace_code_flushing && shared->is_compiled()) {
         SmartArrayPointer<char> name = shared->DebugName()->ToCString();
-        PrintF("[code-flushing clears: %s]\n", *name);
+        PrintF("[code-flushing clears: %s - age: %d]\n", *name,

[Michael Starzinger, 2013/06/12 11:04:04]

nit: Should fit into one line.

[Hannes Payer (out of office), 2013/06/12 12:46:17]

Done.

+            code->GetAge());
       }
       shared->set_code(lazy_compile);
       candidate->set_code(lazy_compile);
@@ -1045,7 +1046,7 @@ void CodeFlusher::ProcessSharedFunctionInfoCandidates() {
     if (!code_mark.Get()) {
       if (FLAG_trace_code_flushing && candidate->is_compiled()) {
         SmartArrayPointer<char> name = candidate->DebugName()->ToCString();
-        PrintF("[code-flushing clears: %s]\n", *name);
+        PrintF("[code-flushing clears: %s - age: %d]\n", *name, code->GetAge());
       }
       candidate->set_code(lazy_compile);
     }