Strict mode poison pills for function.caller and function.arguments

src/messages.js

Index: src/messages.js
diff --git a/src/messages.js b/src/messages.js
index 2c94912fdf09f886a640b12f4309fde57aa54e6e..3adca7f40346808ea8ffeafb321b3e9c48b9f5be 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_function_caller:       ["Cannot access property 'caller' of a strict mode function"],
+      strict_function_arguments:    ["Cannot access property 'arguments' of a strict mode function"],
     };
   }
   var message_type = %MessageGetType(message);