Implemented basic heap memory allocation tracking in MallocHooks using hooks registered with tcmall…

runtime/bin/main.cc

Index: runtime/bin/main.cc
diff --git a/runtime/bin/main.cc b/runtime/bin/main.cc
index f64e4a816622d211319d4224a36811b6ed709434..7bc08ffdb55ff930701cf0ca4f3779a1716c7e1a 100644
--- a/runtime/bin/main.cc
+++ b/runtime/bin/main.cc
@@ -31,6 +31,8 @@
 #include "zlib/zlib.h"
 #endif
 
+#include "vm/malloc_hooks.h"
+
 namespace dart {
 namespace bin {
 
@@ -1899,6 +1901,7 @@ static Dart_GetVMServiceAssetsArchive GetVMServiceAssetsArchiveCallback = NULL;
 
 
 void main(int argc, char** argv) {
+  MallocHooks::Init();
   char* script_name;
   const int EXTRA_VM_ARGUMENTS = 8;
   CommandLineOptions vm_options(argc + EXTRA_VM_ARGUMENTS);