Kill unused CodeGenInfo field in AstNode.

runtime/vm/ast.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_AST_H_
 #define VM_AST_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
@@ skipping 47 matching lines @@
   V(CatchClauseNode, "catch clause block")                                     \
   V(TryCatchNode, "try catch block")                                           \
   V(ThrowNode, "throw")                                                        \
   V(InlinedFinallyNode, "inlined finally")                                     \
 
 
 #define DEFINE_FORWARD_DECLARATION(type, name) class type;
 NODE_LIST(DEFINE_FORWARD_DECLARATION)
 #undef DEFINE_FORWARD_DECLARATION
 
-// Forward declarations.
-class CodeGenInfo;
 
 // Abstract class to implement an AST node visitor. An example is AstPrinter.
 class AstNodeVisitor : public ValueObject {
  public:
   AstNodeVisitor() {}
   virtual ~AstNodeVisitor() {}
 
 #define DEFINE_VISITOR_FUNCTION(type, name)                                    \
   virtual void Visit##type(type* node) { }
 NODE_LIST(DEFINE_VISITOR_FUNCTION)
 #undef DEFINE_VISITOR_FUNCTION
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AstNodeVisitor);
 };
 
 
 #define DECLARE_COMMON_NODE_FUNCTIONS(type)                                    \
   virtual void Visit(AstNodeVisitor* visitor);                                 \
   virtual const char* ShortName() const;                                       \
   virtual bool Is##type() const { return true; }                               \
   virtual type* As##type() { return this; }
 
 
 class AstNode : public ZoneAllocated {
  public:
   explicit AstNode(intptr_t token_pos)
       : token_pos_(token_pos),
-        ic_data_(ICData::ZoneHandle()),
-        info_(NULL) {
+        ic_data_(ICData::ZoneHandle()) {
     ASSERT(token_pos_ >= 0);
   }
 
   intptr_t token_pos() const { return token_pos_; }
 
-
   const ICData& ic_data() const { return ic_data_; }
   void set_ic_data(const ICData& value) {
     ic_data_ = value.raw();
   }
 
-  void set_info(CodeGenInfo* info) { info_ = info; }
-  CodeGenInfo* info() const { return info_; }
-
 #define AST_TYPE_CHECK(type, name)                                             \
   virtual bool Is##type() const { return false; }                              \
   virtual type* As##type() { return NULL; }
 NODE_LIST(AST_TYPE_CHECK)
 #undef AST_TYPE_CHECK
 
   virtual void Visit(AstNodeVisitor* visitor) = 0;
   virtual void VisitChildren(AstNodeVisitor* visitor) const = 0;
   virtual const char* ShortName() const = 0;
 
@@ skipping 26 matching lines @@
   // the former).
   virtual const Instance* EvalConstExpr() const { return NULL; }
 
  protected:
   friend class ParsedFunction;
 
  private:
   const intptr_t token_pos_;
   // IC data collected for this node.
   ICData& ic_data_;
-  // Used by optimizing compiler.
-  CodeGenInfo* info_;
   DISALLOW_COPY_AND_ASSIGN(AstNode);
 };
 
 
 class SequenceNode : public AstNode {
  public:
   SequenceNode(intptr_t token_pos, LocalScope* scope)
     : AstNode(token_pos),
       scope_(scope),
       nodes_(4),
@@ skipping 1535 matching lines @@
   const LocalVariable& context_var_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(InlinedFinallyNode);
 };
 
 }  // namespace dart
 
 #undef DECLARE_COMMON_NODE_FUNCTIONS
 
 #endif  // VM_AST_H_