Introduce extended mode.

src/full-codegen.cc

 // 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:
 //
 //     * 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 525 matching lines @@
       }
     }
     // Invoke the platform-dependent code generator to do the actual
     // declaration the global functions and variables.
     DeclareGlobals(array);
   }
 }
 
 
 int FullCodeGenerator::DeclareGlobalsFlags() {
-  ASSERT(DeclareGlobalsStrictModeFlag::is_valid(strict_mode_flag()));
+  ASSERT(DeclareGlobalsLanguageMode::is_valid(language_mode()));
   return DeclareGlobalsEvalFlag::encode(is_eval()) |
-      DeclareGlobalsStrictModeFlag::encode(strict_mode_flag()) |
-      DeclareGlobalsNativeFlag::encode(is_native());
+      DeclareGlobalsNativeFlag::encode(is_native()) |
+      DeclareGlobalsLanguageMode::encode(language_mode());
 }
 
 
 void FullCodeGenerator::SetFunctionPosition(FunctionLiteral* fun) {
   CodeGenerator::RecordPositions(masm_, fun->start_position());
 }
 
 
 void FullCodeGenerator::SetReturnPosition(FunctionLiteral* fun) {
   CodeGenerator::RecordPositions(masm_, fun->end_position() - 1);
@@ skipping 749 matching lines @@
   }
 
   return false;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal