[Interpreter] Add BytecodeArray class and add to SharedFunctionInfo.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index d16bd828b43bf310e290840e3a5f9ee1175ef422..6f45f694fe49c28d558cfbe70c3b3ec818e6ff29 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -31,6 +31,7 @@
 #include "src/heap/objects-visiting-inl.h"
 #include "src/hydrogen.h"
 #include "src/ic/ic.h"
+#include "src/interpreter/bytecodes.h"
 #include "src/log.h"
 #include "src/lookup.h"
 #include "src/macro-assembler.h"
@@ -1250,6 +1251,9 @@ void HeapObject::HeapObjectShortPrint(std::ostream& os) {  // NOLINT
     case BYTE_ARRAY_TYPE:
       os << "<ByteArray[" << ByteArray::cast(this)->length() << "]>";
       break;
+    case BYTECODE_ARRAY_TYPE:
+      os << "<BytecodeArray[" << BytecodeArray::cast(this)->length() << "]>";
+      break;
     case FREE_SPACE_TYPE:
       os << "<FreeSpace[" << FreeSpace::cast(this)->Size() << "]>";
       break;
@@ -1476,6 +1480,7 @@ void HeapObject::IterateBody(InstanceType type, int object_size,
     case FLOAT32X4_TYPE:
     case FILLER_TYPE:
     case BYTE_ARRAY_TYPE:
+    case BYTECODE_ARRAY_TYPE:
     case FREE_SPACE_TYPE:
       break;
 
@@ -11791,6 +11796,15 @@ void Code::Disassemble(const char* name, std::ostream& os) {  // NOLINT
 #endif  // ENABLE_DISASSEMBLER
 
 
+void BytecodeArray::Disassemble(std::ostream& os) {
+  for (int i = 0; i < this->length(); i++) {
+    byte bc = this->get(i);
+    os << i << " : " << this->get(i) << " "
+       << static_cast<interpreter::Bytecode>(bc) << "\n";

[rmcilroy, 2015/07/16 10:29:44]

We will need to do something more complex than this (probably in Bytecodes.cc)
to deal with bytecode arguments and such, but this is probably fine for now.

[oth, 2015/07/16 13:14:39]

Ack. Sync'ed with current Bytecode representation though haven't moved code.

+  }
+}
+
+
 // static
 void JSArray::Initialize(Handle<JSArray> array, int capacity, int length) {
   DCHECK(capacity >= 0);