Add runtime and native entry tags

runtime/vm/runtime_entry.h

Index: runtime/vm/runtime_entry.h
diff --git a/runtime/vm/runtime_entry.h b/runtime/vm/runtime_entry.h
index 3bb1ddef75e9864a22d4ae7b29937d78dd75ff9e..8fdfcc46e93de05d811caa805de7ad11e28cc4f1 100644
--- a/runtime/vm/runtime_entry.h
+++ b/runtime/vm/runtime_entry.h
@@ -9,6 +9,7 @@
 #include "vm/assembler.h"
 #include "vm/flags.h"
 #include "vm/native_arguments.h"
+#include "vm/tags.h"
 
 namespace dart {
 
@@ -28,7 +29,9 @@ class RuntimeEntry : public ValueObject {
         function_(function),
         argument_count_(argument_count),
         is_leaf_(is_leaf),
-        is_float_(is_float) { }
+        is_float_(is_float) {
+    VMTag::RegisterRuntimeEntry(this);
+  }
   ~RuntimeEntry() {}
 
   const char* name() const { return name_; }