Track live instance and allocation counts for classes

runtime/vm/assembler_ia32.h

Index: runtime/vm/assembler_ia32.h
diff --git a/runtime/vm/assembler_ia32.h b/runtime/vm/assembler_ia32.h
index 37d4b9c0ebf51a2be023a7e7bb4f82d719086a20..04902abe3314dda05ad959c6cc4b9ce9d201e596 100644
--- a/runtime/vm/assembler_ia32.h
+++ b/runtime/vm/assembler_ia32.h
@@ -765,14 +765,24 @@ class Assembler : public ValueObject {
   //   L:
   static const intptr_t kEntryPointToPcMarkerOffset = 8;
 
+  void UpdateAllocationStats(intptr_t cid,
+                             Register temp_reg,
+                             Heap::Space space = Heap::kNew);
+
+  void UpdateAllocationStatsWithSize(intptr_t cid,
+                                     Register size_reg,
+                                     Register temp_reg,
+                                     Heap::Space space = Heap::kNew);
+
   // Inlined allocation of an instance of class 'cls', code has no runtime
   // calls. Jump to 'failure' if the instance cannot be allocated here.
   // Allocated instance is returned in 'instance_reg'.
   // Only the tags field of the object is initialized.
   void TryAllocate(const Class& cls,
-                          Label* failure,
-                          bool near_jump,
-                          Register instance_reg);
+                   Label* failure,
+                   bool near_jump,
+                   Register instance_reg,
+                   Register temp_reg);
 
   // Debugging and bringup support.
   void Stop(const char* message);