Update Assembler::TryAllocate to support inline allocation tracing

runtime/vm/assembler_ia32.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_ASSEMBLER_IA32_H_
 #define VM_ASSEMBLER_IA32_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_ia32.h directly; use assembler.h instead.
 #endif
@@ skipping 853 matching lines @@
   // entrypoint:
   //   pushl ebp          (size is 1 byte)
   //   movl ebp, esp      (size is 2 bytes)
   //   call L             (size is 5 bytes)
   //   L:
   static const intptr_t kEntryPointToPcMarkerOffset = 8;
   static intptr_t EntryPointToPcMarkerOffset() {
     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);
 
   void UpdateAllocationStatsWithSize(intptr_t cid,
                                      Register size_reg,
                                      Register temp_reg,
                                      Heap::Space space);
   void UpdateAllocationStatsWithSize(intptr_t cid,
                                      intptr_t instance_size,
@@ skipping 147 matching lines @@
 }
 
 
 inline void Assembler::EmitOperandSizeOverride() {
   EmitUint8(0x66);
 }
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_IA32_H_