- Reintroduce a library privacy disabling option.

vm/scanner.cc

 // 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.
 
 #include "vm/scanner.h"
 
 #include "platform/assert.h"
 #include "vm/flags.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/thread.h"
 #include "vm/token.h"
 
 namespace dart {
 
+DEFINE_FLAG(bool, disable_privacy, false, "Disable library privacy.");
 DEFINE_FLAG(bool, print_tokens, false, "Print scanned tokens.");
 
 void Scanner::InitKeywordTable() {
   ObjectStore* object_store = Isolate::Current()->object_store();
   keyword_symbol_table_ = object_store->keyword_symbols();
   if (keyword_symbol_table_.IsNull()) {
     object_store->InitKeywordTable();
     keyword_symbol_table_ = object_store->keyword_symbols();
     ASSERT(!keyword_symbol_table_.IsNull());
   }
@@ skipping 257 matching lines @@
         return;
       }
     }
     i++;
   }
 
   // We did not read a keyword.
   current_token_.kind = Token::kIDENT;
   String& literal =
       String::ZoneHandle(String::NewSymbol(source_, ident_pos, ident_length));
-  if (ident_char0 == kPrivateIdentifierStart) {
+  if ((ident_char0 == kPrivateIdentifierStart) && !FLAG_disable_privacy) {
     // Private identifiers are mangled on a per script basis.
     literal = String::Concat(literal, private_key_);
     literal = String::NewSymbol(literal);
   }
   current_token_.literal = &literal;
 }
 
 
 // Parse integer or double number literal of format:
 // NUMBER = INTEGER | DOUBLE
@@ skipping 607 matching lines @@
               "%c%"PRIxPTR, kPrivateKeySeparator, key_value);
   const String& result = String::Handle(String::New(private_key));
   return result.raw();
 }
 
 
 void Scanner::InitOnce() {
 }
 
 }  // namespace dart