Use a dictionary-mode code cache on the map rather than a dual system.

src/disassembler.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/disassembler.h"
 
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
@@ skipping 185 matching lines @@
         Code::Kind kind = code->kind();
         if (code->is_inline_cache_stub()) {
           if (kind == Code::LOAD_IC &&
               LoadICState::GetTypeofMode(code->extra_ic_state()) ==
                   NOT_INSIDE_TYPEOF) {
             out.AddFormatted(" contextual,");
           }
           InlineCacheState ic_state = code->ic_state();
           out.AddFormatted(" %s, %s", Code::Kind2String(kind),
               Code::ICState2String(ic_state));
-          if (ic_state == MONOMORPHIC) {
-            Code::StubType type = code->type();
-            out.AddFormatted(", %s", Code::StubType2String(type));
-          }
         } else if (kind == Code::STUB || kind == Code::HANDLER) {
           // Get the STUB key and extract major and minor key.
           uint32_t key = code->stub_key();
           uint32_t minor_key = CodeStub::MinorKeyFromKey(key);
           CodeStub::Major major_key = CodeStub::GetMajorKey(code);
           DCHECK(major_key == CodeStub::MajorKeyFromKey(key));
           out.AddFormatted(" %s, %s, ", Code::Kind2String(kind),
                            CodeStub::MajorName(major_key));
           out.AddFormatted("minor: %d", minor_key);
         } else {
@@ skipping 61 matching lines @@
 
 int Disassembler::Decode(Isolate* isolate, std::ostream* os, byte* begin,
                          byte* end, Code* code) {
   return 0;
 }
 
 #endif  // ENABLE_DISASSEMBLER
 
 }  // namespace internal
 }  // namespace v8