Remove some dead code.

src/ast.cc

Index: src/ast.cc
diff --git a/src/ast.cc b/src/ast.cc
index 9a263a537002e52c26d91d719a307db7492eaf2c..78cf9700327c5e2d87aead80db1ff09bc0d84c65 100644
--- a/src/ast.cc
+++ b/src/ast.cc
@@ -1,4 +1,4 @@
-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -28,10 +28,10 @@
 #include "v8.h"
 
 #include "ast.h"
-#include "jump-target-inl.h"
 #include "parser.h"
 #include "scopes.h"
 #include "string-stream.h"
+#include "type-info.h"
 
 namespace v8 {
 namespace internal {
@@ -291,7 +291,7 @@ void ObjectLiteral::CalculateEmitStore() {
 }
 
 
-void TargetCollector::AddTarget(BreakTarget* target) {
+void TargetCollector::AddTarget(Label* target) {
   // Add the label to the collector, but discard duplicates.
   int length = targets_->length();
   for (int i = 0; i < length; i++) {
@@ -368,12 +368,6 @@ bool Expression::GuaranteedSmiResult() {
 }
 
 
-void Expression::CopyAnalysisResultsFrom(Expression* other) {
-  bitfields_ = other->bitfields_;
-  type_ = other->type_;
-}
-
-
 bool UnaryOperation::ResultOverwriteAllowed() {
   switch (op_) {
     case Token::BIT_NOT:
@@ -416,7 +410,6 @@ BinaryOperation::BinaryOperation(Assignment* assignment) {
   left_ = assignment->target();
   right_ = assignment->value();
   pos_ = assignment->position();
-  CopyAnalysisResultsFrom(assignment);
 }