Remove unnecessary AST node for ++ and -- operations.

src/x64/full-codegen-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3793 matching lines @@
       __ push(rax);  // Copy of key, needed for later store.
       EmitKeyedPropertyLoad(prop);
     }
   }
 
   // We need a second deoptimization point after loading the value
   // in case evaluating the property load my have a side effect.
   if (assign_type == VARIABLE) {
     PrepareForBailout(expr->expression(), TOS_REG);
   } else {
-    PrepareForBailout(expr->increment(), TOS_REG);
+    PrepareForBailoutForId(expr->CountId(), TOS_REG);
   }
 
   // Call ToNumber only if operand is not a smi.
   NearLabel no_conversion;
   Condition is_smi;
   is_smi = masm_->CheckSmi(rax);
   __ j(is_smi, &no_conversion);
   ToNumberStub convert_stub;
   __ CallStub(&convert_stub);
   __ bind(&no_conversion);
@@ skipping 505 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64