[es6] implement spread calls

src/full-codegen.h

Index: src/full-codegen.h
diff --git a/src/full-codegen.h b/src/full-codegen.h
index 217f9e9bc986013521fae7c74f4de986236114e6..f5bdfdb8a607dd289ff1c6ca749f0815984235dc 100644
--- a/src/full-codegen.h
+++ b/src/full-codegen.h
@@ -370,9 +370,14 @@ class FullCodeGenerator: public AstVisitor {
     PrepareForBailout(expr, TOS_REG);
   }
 
-  void VisitForStackValue(Expression* expr) {
+  void VisitForStackValue(Expression* expr, bool allow_super = false) {
     StackValueContext context(this);
-    Visit(expr);
+    if (allow_super && expr->IsSuperReference()) {

[Dmitry Lomov (no reviews), 2015/03/31 10:09:42]

Do not do this. 
Instead, call EmitLoadSuperConstructor() explicitly.
Meaning of 'super' is different in different contexts.

+      EmitLoadSuperConstructor();
+      context.Plug(result_register());
+    } else {
+      Visit(expr);
+    }
     PrepareForBailout(expr, NO_REGISTERS);
   }
 
@@ -659,6 +664,7 @@ class FullCodeGenerator: public AstVisitor {
   void EmitSetHomeObjectIfNeeded(Expression* initializer, int offset);
 
   void EmitLoadSuperConstructor();
+  void EmitInitializeThisAfterSuper(SuperReference* super_ref);
 
   void CallIC(Handle<Code> code,
               TypeFeedbackId id = TypeFeedbackId::None());