convert disassembler to use OStream

src/objects.cc

 // Copyright 2013 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/v8.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
 #include "src/api.h"
 #include "src/arguments.h"
@@ skipping 10853 matching lines @@
     }
   }
   if ((name != NULL) && (name[0] != '\0')) {
     os << "name = " << name << "\n";
   }
   if (kind() == OPTIMIZED_FUNCTION) {
     os << "stack_slots = " << stack_slots() << "\n";
   }
 
   os << "Instructions (size = " << instruction_size() << ")\n";
-  // TODO(svenpanne) The Disassembler should use streams, too!
   {
-    CodeTracer::Scope trace_scope(GetIsolate()->GetCodeTracer());
-    Disassembler::Decode(trace_scope.file(), this);
+    Isolate* isolate = GetIsolate();
+    int decode_size = is_crankshafted()
+                          ? static_cast<int>(safepoint_table_offset())
+                          : instruction_size();
+    // If there might be a back edge table, stop before reaching it.
+    if (kind() == Code::FUNCTION) {
+      decode_size =
+          Min(decode_size, static_cast<int>(back_edge_table_offset()));
+    }
+    byte* begin = instruction_start();
+    byte* end = begin + decode_size;
+    Disassembler::Decode(isolate, &os, begin, end, this);
   }
   os << "\n";
 
   if (kind() == FUNCTION) {
     DeoptimizationOutputData* data =
         DeoptimizationOutputData::cast(this->deoptimization_data());
     data->DeoptimizationOutputDataPrint(os);
   } else if (kind() == OPTIMIZED_FUNCTION) {
     DeoptimizationInputData* data =
         DeoptimizationInputData::cast(this->deoptimization_data());
@@ skipping 5466 matching lines @@
   Handle<DependentCode> codes =
       DependentCode::Insert(handle(cell->dependent_code(), info->isolate()),
                             DependentCode::kPropertyCellChangedGroup,
                             info->object_wrapper());
   if (*codes != cell->dependent_code()) cell->set_dependent_code(*codes);
   info->dependencies(DependentCode::kPropertyCellChangedGroup)->Add(
       cell, info->zone());
 }
 
 } }  // namespace v8::internal