- Specialized IsClassOf for Number, Boolean, Arguments, and Function.

src/heap.h

 // Copyright 2006-2008 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 117 matching lines @@
 #define ROOT_LIST(V)                                  \
   STRONG_ROOT_LIST(V)                                 \
   V(Object, symbol_table)
 
 #define SYMBOL_LIST(V)                                                   \
   V(Array_symbol, "Array")                                               \
   V(Object_symbol, "Object")                                             \
   V(Proto_symbol, "__proto__")                                           \
   V(StringImpl_symbol, "StringImpl")                                     \
   V(arguments_symbol, "arguments")                                       \
+  V(Arguments_symbol, "Arguments")                                       \
   V(arguments_shadow_symbol, ".arguments")                               \
   V(call_symbol, "call")                                                 \
   V(apply_symbol, "apply")                                               \
   V(caller_symbol, "caller")                                             \
   V(boolean_symbol, "boolean")                                           \
+  V(Boolean_symbol, "Boolean")                                           \
   V(callee_symbol, "callee")                                             \
   V(constructor_symbol, "constructor")                                   \
   V(code_symbol, ".code")                                                \
   V(result_symbol, ".result")                                            \
   V(catch_var_symbol, ".catch-var")                                      \
   V(empty_symbol, "")                                                    \
   V(eval_symbol, "eval")                                                 \
   V(function_symbol, "function")                                         \
   V(length_symbol, "length")                                             \
   V(name_symbol, "name")                                                 \
   V(number_symbol, "number")                                             \
+  V(Number_symbol, "Number")                                             \
   V(object_symbol, "object")                                             \
   V(prototype_symbol, "prototype")                                       \
   V(string_symbol, "string")                                             \
   V(String_symbol, "String")                                             \
   V(Date_symbol, "Date")                                                 \
   V(this_symbol, "this")                                                 \
   V(to_string_symbol, "toString")                                        \
   V(char_at_symbol, "CharAt")                                            \
   V(undefined_symbol, "undefined")                                       \
   V(value_of_symbol, "valueOf")                                          \
@@ skipping 1001 matching lines @@
   int marked_count_;
 
   // The count from the end of the previous full GC.  Will be zero if there
   // was no previous full GC.
   int previous_marked_count_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_