.

src/messages.js

Index: src/messages.js
diff --git a/src/messages.js b/src/messages.js
index f0d241aebc8031a3679f09e5369fbc0d5ace52c9..a73e04d3eb6bcdbf50c26d8fb4096e6f400eea41 100644
--- a/src/messages.js
+++ b/src/messages.js
@@ -4,15 +4,6 @@
 
 // -------------------------------------------------------------------
 
-var $errorToString;
-var MakeError;
-var MakeEvalError;
-var MakeRangeError;
-var MakeReferenceError;
-var MakeSyntaxError;
-var MakeTypeError;
-var MakeURIError;
-
 (function(global, utils) {
 
 %CheckIsBootstrapping();
@@ -976,8 +967,6 @@ function ErrorToString() {
 utils.InstallFunctions(GlobalError.prototype, DONT_ENUM,
                        ['toString', ErrorToString]);
 
-$errorToString = ErrorToString;
-
 MakeError = function(type, arg0, arg1, arg2) {
   return MakeGenericError(GlobalError, type, arg0, arg1, arg2);
 }
@@ -1018,20 +1007,21 @@ GlobalError.captureStackTrace = captureStackTrace;
 
 utils.ExportToRuntime(function(to) {
   to.Error = GlobalError;
+  to.ErrorToString = ErrorToString;
   to.EvalError = GlobalEvalError;
-  to.RangeError = GlobalRangeError;
-  to.ReferenceError = GlobalReferenceError;
-  to.SyntaxError = GlobalSyntaxError;
-  to.TypeError = GlobalTypeError;
-  to.URIError = GlobalURIError;
   to.GetStackTraceLine = GetStackTraceLine;
-  to.NoSideEffectToString = NoSideEffectToString;
-  to.ToDetailString = ToDetailString;
   to.MakeError = MakeGenericError;
-  to.MessageGetLineNumber = GetLineNumber;
   to.MessageGetColumnNumber = GetColumnNumber;
+  to.MessageGetLineNumber = GetLineNumber;
   to.MessageGetSourceLine = GetSourceLine;
+  to.NoSideEffectToString = NoSideEffectToString;
+  to.RangeError = GlobalRangeError;
+  to.ReferenceError = GlobalReferenceError;
   to.StackOverflowBoilerplate = StackOverflowBoilerplate;
+  to.SyntaxError = GlobalSyntaxError;
+  to.ToDetailString = ToDetailString;
+  to.TypeError = GlobalTypeError;
+  to.URIError = GlobalURIError;
 });
 
 });