[interpreter] Add basic framework for bytecode handler code generation.

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index f4807a629700f91dc4344ecce14571a4f2a0313a..a46ce84e844c19e3732ebe1c817992bab2d29a19 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -25,6 +25,7 @@
 #include "src/heap-profiler.h"
 #include "src/hydrogen.h"
 #include "src/ic/stub-cache.h"
+#include "src/interpreter/interpreter.h"
 #include "src/lithium-allocator.h"
 #include "src/log.h"
 #include "src/messages.h"
@@ -2116,6 +2117,7 @@ bool Isolate::Init(Deserializer* des) {
       new CallInterfaceDescriptorData[CallDescriptors::NUMBER_OF_DESCRIPTORS];
   cpu_profiler_ = new CpuProfiler(this);
   heap_profiler_ = new HeapProfiler(heap());
+  interpreter_ = new interpreter::Interpreter();
 
   // Enable logging before setting up the heap
   logger_->SetUp(this);
@@ -2163,6 +2165,10 @@ bool Isolate::Init(Deserializer* des) {
   bootstrapper_->Initialize(create_heap_objects);
   builtins_.SetUp(this, create_heap_objects);
 
+  if (FLAG_ignition) {
+    interpreter_->Initialize(this, create_heap_objects);
+  }
+
   if (FLAG_log_internal_timer_events) {
     set_event_logger(Logger::DefaultEventLoggerSentinel);
   }