[interpreter] Add support for scalable operands.

src/objects.cc

 // Copyright 2015 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/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 15008 matching lines @@
 }
 
 void BytecodeArray::Disassemble(std::ostream& os) {
   os << "Parameter count " << parameter_count() << "\n";
   os << "Frame size " << frame_size() << "\n";
   Vector<char> buf = Vector<char>::New(50);
 
   const uint8_t* base_address = GetFirstBytecodeAddress();
   interpreter::SourcePositionTableIterator source_positions(
       source_position_table());
+
   interpreter::BytecodeArrayIterator iterator(handle(this));
   while (!iterator.done()) {
     if (!source_positions.done() &&
         iterator.current_offset() == source_positions.bytecode_offset()) {
       os << std::setw(5) << source_positions.source_position();
       os << (source_positions.is_statement() ? " S> " : " E> ");
       source_positions.Advance();
     } else {
       os << "         ";
     }
@@ skipping 4733 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8