Expand the class id to 32 bits and size field to 16 bits on 64-bit platforms.

runtime/vm/disassembler_ia32.cc

 // Copyright (c) 2012, 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.
 
 #include "vm/disassembler.h"
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 #include "platform/utils.h"
 #include "vm/allocation.h"
@@ skipping 711 matching lines @@
     case 1: mnem = "or"; break;
     case 2: mnem = "adc"; break;
     case 3: mnem = "sbb"; break;
     case 4: mnem = "and"; break;
     case 5: mnem = "sub"; break;
     case 6: mnem = "xor"; break;
     case 7: mnem = "cmp"; break;
     default: UNIMPLEMENTED();
   }
   Print(mnem);
-  if (size_override) {
-    Print("_w");
-  } else if (sign_extension_bit) {
-    Print("_b");
-  }
   Print(" ");
   int count = PrintRightOperand(data+1);
   Print(",");
   if (size_override) {
     PrintHex(*reinterpret_cast<int16_t*>(data + 1 + count));
     return 1 + count + 2 /*int16_t*/;
   } else if (sign_extension_bit) {
     PrintHex(*(data + 1 + count));
     return 1 + count + 1 /*int8_t*/;
   } else {
@@ skipping 1127 matching lines @@
   }
   hex_buffer[hex_index] = '\0';
   if (out_instr_len) {
     *out_instr_len = instruction_length;
   }
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32