Added a EvalCache that caches eval'ed scripts and compiled function boilerpla...

src/v8-counters.h

 // Copyright 2007-2008 Google Inc. 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 53 matching lines @@
   SC(symbol_table_capacity, V8.SymbolTableCapacity)              \
   SC(number_of_symbols, V8.NumberOfSymbols)                      \
   /* Current amount of memory in external string buffers. */     \
   SC(total_external_string_memory, V8.TotalExternalStringMemory) \
   SC(script_wrappers, V8.ScriptWrappers)                         \
   SC(call_initialize_stubs, V8.CallInitializeStubs)              \
   SC(call_premonomorphic_stubs, V8.CallPreMonomorphicStubs)      \
   SC(call_normal_stubs, V8.CallNormalStubs)                      \
   SC(call_megamorphic_stubs, V8.CallMegamorphicStubs)            \
   SC(arguments_adaptors, V8.ArgumentsAdaptors)                   \
+  SC(eval_cache_hits, V8.EvalCacheHits)                          \
+  SC(eval_cache_misses, V8.EvalCacheMisses)                      \
   /* Amount of evaled source code. */                            \
   SC(total_eval_size, V8.TotalEvalSize)                          \
   /* Amount of loaded source code. */                            \
   SC(total_load_size, V8.TotalLoadSize)                          \
   /* Amount of parsed source code. */                            \
   SC(total_parse_size, V8.TotalParseSize)                        \
   /* Amount of source code skipped over using preparsing. */     \
   SC(total_preparse_skipped, V8.TotalPreparseSkipped)            \
   /* Amount of compiled source code. */                          \
   SC(total_compile_size, V8.TotalCompileSize)
@@ skipping 59 matching lines @@
     stats_counter_count
   };
 
   // Sliding state window counters.
   static StatsCounter state_counters[];
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_COUNTERS_H_