Update Assembler::TryAllocate to support inline allocation tracing

runtime/vm/assembler_arm64.h

Index: runtime/vm/assembler_arm64.h
diff --git a/runtime/vm/assembler_arm64.h b/runtime/vm/assembler_arm64.h
index 71a4787c83572e6293ac210ce7e8857afeefcf99..de04a60b83c3a0f7095d71c6d6ceaf049345f003 100644
--- a/runtime/vm/assembler_arm64.h
+++ b/runtime/vm/assembler_arm64.h
@@ -1387,6 +1387,13 @@ class Assembler : public ValueObject {
                                      Register pp,
                                      Heap::Space space);
 
+  // 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,
+                            Register pp,
+                            Label* trace);
+
   // 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'.