Implement inlining of constructor calls.

src/lithium.h

Index: src/lithium.h
diff --git a/src/lithium.h b/src/lithium.h
index c0d7d076d9c9b3128ea6bbfb5288caa56a16d2c9..80af287ffb774ee1ab22034274e78e8283ac38f0 100644
--- a/src/lithium.h
+++ b/src/lithium.h
@@ -439,14 +439,14 @@ class LPointerMap: public ZoneObject {
 class LEnvironment: public ZoneObject {
  public:
   LEnvironment(Handle<JSFunction> closure,
-               bool is_arguments_adaptor,
+               FrameType frame_type,
                int ast_id,
                int parameter_count,
                int argument_count,
                int value_count,
                LEnvironment* outer)
       : closure_(closure),
-        is_arguments_adaptor_(is_arguments_adaptor),
+        frame_type_(frame_type),
         arguments_stack_height_(argument_count),
         deoptimization_index_(Safepoint::kNoDeoptimizationIndex),
         translation_index_(-1),
@@ -461,6 +461,7 @@ class LEnvironment: public ZoneObject {
   }
 
   Handle<JSFunction> closure() const { return closure_; }
+  FrameType frame_type() const { return frame_type_; }
   int arguments_stack_height() const { return arguments_stack_height_; }
   int deoptimization_index() const { return deoptimization_index_; }
   int translation_index() const { return translation_index_; }
@@ -503,11 +504,9 @@ class LEnvironment: public ZoneObject {
 
   void PrintTo(StringStream* stream);
 
-  bool is_arguments_adaptor() const { return is_arguments_adaptor_; }
-
  private:
   Handle<JSFunction> closure_;
-  bool is_arguments_adaptor_;
+  FrameType frame_type_;
   int arguments_stack_height_;
   int deoptimization_index_;
   int translation_index_;