Track JS allocations as they arrive with no affection on performance when tracking is switched off

test/cctest/cctest.cc

Index: test/cctest/cctest.cc
diff --git a/test/cctest/cctest.cc b/test/cctest/cctest.cc
index 962dc02e2f6d29358caf2e8bd47a9b7d54e01a6c..a04e8779a351dbf9c9673adcef04cc1f3cde46ed 100644
--- a/test/cctest/cctest.cc
+++ b/test/cctest/cctest.cc
@@ -190,3 +190,9 @@ int main(int argc, char* argv[]) {
 
 RegisterThreadedTest *RegisterThreadedTest::first_ = NULL;
 int RegisterThreadedTest::count_ = 0;
+
+void RunAndTrackAllocations(void (*test)()) {
+  LocalContext env;

[Alexandra Mikhaylova, 2013/09/19 16:09:04]

All we need to do here is to quickly initialize the isolate. This is not the
best way to do it and needs to be fixed.

+  HeapObjectsTracker tracker;
+  (*test)();
+}