Update Assembler::TryAllocate to support inline allocation tracing

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 7ebea1d02ca3d86ae6bc0f1c29a5f1025553f980..f08b9d099fe9f79bfa3b827015d7412c86bc84b2 100644
--- a/runtime/vm/assembler_ia32.h
+++ b/runtime/vm/assembler_ia32.h
@@ -871,6 +871,13 @@ class Assembler : public ValueObject {
     return kEntryPointToPcMarkerOffset;
   }
 
+  // If allocation tracing for |cid| is enabled, will jump to |trace| label,
+  // which will allocate in the runtime where tracing occurs.
+  void MaybeTraceAllocation(intptr_t cid,
+                            Register temp_reg,
+                            Label* trace,
+                            bool near_jump);
+
   void UpdateAllocationStats(intptr_t cid,
                              Register temp_reg,
                              Heap::Space space);