code review 189080: Steps towards tracking scopes for identifiers.

src/pkg/exp/parser/interface.go

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // This file contains the exported entry points for invoking the parser.
 
 package oldParser
 
 import (
         "bytes"
@@ skipping 130 matching lines @@
         src, err := ioutil.ReadFile(filename)
         if err != nil {
                 return nil, err
         }
 
         if pkgname != "" {
                 prog, err := ParseFile(filename, src, PackageClauseOnly)
                 if err != nil {
                         return nil, err
                 }
-                if prog.Name.Value() != pkgname {
-                        return nil, os.NewError(fmt.Sprintf("multiple packages found: %s, %s", prog.Name.Value(), pkgname))
+                if prog.Name.Name() != pkgname {
+                        return nil, os.NewError(fmt.Sprintf("multiple packages found: %s, %s", prog.Name.Name(), pkgname))
                 }
                 if mode == PackageClauseOnly {
                         return prog, nil
                 }
         }
 
         return ParseFile(filename, src, mode)
 }
 
 
@@ skipping 19 matching lines @@
         files := make(map[string]*ast.File)
         for i := 0; i < len(list); i++ {
                 entry := &list[i]
                 if filter == nil || filter(entry) {
                         src, err := ParsePkgFile(name, pathutil.Join(path, entry.Name), mode)
                         if err != nil {
                                 return nil, err
                         }
                         files[entry.Name] = src
                         if name == "" {
-                                name = src.Name.Value()
+                                name = src.Name.Name()
                         }
                 }
         }
 
         if len(files) == 0 {
                 return nil, os.NewError(path + ": no package found")
         }
 
         return &ast.Package{name, path, files}, nil
 }