Implement strict mode arguments caller/callee.

src/messages.js

Index: src/messages.js
diff --git a/src/messages.js b/src/messages.js
index 3adca7f40346808ea8ffeafb321b3e9c48b9f5be..ea0096fe1ae85a2c369e56c602e4d36129a20631 100644
--- a/src/messages.js
+++ b/src/messages.js
@@ -230,6 +230,8 @@ function FormatMessage(message) {
       strict_function:              ["In strict mode code, functions can only be declared at top level or immediately within another function." ],
       strict_read_only_property:    ["Cannot assign to read only property '", "%0", "' of ", "%1"],
       strict_cannot_assign:         ["Cannot assign to read only '", "%0", "' in strict mode"],
+      strict_arguments_callee:      ["Cannot access property 'callee' of strict mode arguments"],
+      strict_arguments_caller:      ["Cannot access property 'caller' of strict mode arguments"],
       strict_function_caller:       ["Cannot access property 'caller' of a strict mode function"],
       strict_function_arguments:    ["Cannot access property 'arguments' of a strict mode function"],
     };