Introduce extended mode.

src/compilation-cache.h

 // 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 125 matching lines @@
 //    More specifically these are the CompileString, DebugEvaluate and
 //    DebugEvaluateGlobal runtime functions.
 // 4. The start position of the calling scope.
 class CompilationCacheEval: public CompilationSubCache {
  public:
   CompilationCacheEval(Isolate* isolate, int generations)
       : CompilationSubCache(isolate, generations) { }
 
   Handle<SharedFunctionInfo> Lookup(Handle<String> source,
                                     Handle<Context> context,
-                                    StrictModeFlag strict_mode,
+                                    LanguageMode language_mode,
                                     int scope_position);
 
   void Put(Handle<String> source,
            Handle<Context> context,
            Handle<SharedFunctionInfo> function_info,
            int scope_position);
 
  private:
   MUST_USE_RESULT MaybeObject* TryTablePut(
       Handle<String> source,
@@ skipping 50 matching lines @@
                                           Handle<Object> name,
                                           int line_offset,
                                           int column_offset);
 
   // Finds the shared function info for a source string for eval in a
   // given context.  Returns an empty handle if the cache doesn't
   // contain a script for the given source string.
   Handle<SharedFunctionInfo> LookupEval(Handle<String> source,
                                         Handle<Context> context,
                                         bool is_global,
-                                        StrictModeFlag strict_mode,
+                                        LanguageMode language_mode,
                                         int scope_position);
 
   // Returns the regexp data associated with the given regexp if it
   // is in cache, otherwise an empty handle.
   Handle<FixedArray> LookupRegExp(Handle<String> source,
                                   JSRegExp::Flags flags);
 
   // Associate the (source, kind) pair to the shared function
   // info. This may overwrite an existing mapping.
   void PutScript(Handle<String> source,
@@ skipping 59 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationCache);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILATION_CACHE_H_