RFC: Switch to ast ids (instead of positions) for type feedback.

src/ast.cc

 // Copyright 2010 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:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 107 matching lines @@
 
 
 Assignment::Assignment(Token::Value op,
                        Expression* target,
                        Expression* value,
                        int pos)
     : op_(op),
       target_(target),
       value_(value),
       pos_(pos),
-      compound_bailout_id_(kNoNumber),
+      compound_bailout_id_(kNoAstId),
       block_start_(false),
       block_end_(false),
       is_monomorphic_(false),
       receiver_types_(NULL) {
   ASSERT(Token::IsAssignmentOp(op));
   binary_operation_ = is_compound()
       ? new BinaryOperation(binary_op(), target, value, pos + 1)
       : NULL;
   if (is_compound()) {
     compound_bailout_id_ = GetNextId();
@@ skipping 895 matching lines @@
 
 CaseClause::CaseClause(Expression* label,
                        ZoneList<Statement*>* statements,
                        int pos)
     : label_(label),
       statements_(statements),
       position_(pos),
       compare_type_(NONE) {}
 
 } }  // namespace v8::internal