Use shared container to manage imports/exports.

src/string.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-var $stringCharAt;
-var $stringIndexOf;
-var $stringSubstring;
-
-(function(global, shared, exports) {
+(function(global, utils) {
 
 %CheckIsBootstrapping();
 
 // -------------------------------------------------------------------
 // Imports
 
 var GlobalRegExp = global.RegExp;
 var GlobalString = global.String;
-var InternalArray = shared.InternalArray;
-var InternalPackedArray = shared.InternalPackedArray;
+var InternalArray = utils.InternalArray;
+var InternalPackedArray = utils.InternalPackedArray;
+
+var MathMax;
+var MathMin;
+
+utils.Import(function(from) {
+  MathMax = from.MathMax;
+  MathMin = from.MathMin;
+});
 
 //-------------------------------------------------------------------
 
 function StringConstructor(x) {
   if (%_ArgumentsLength() == 0) x = '';
   if (%_IsConstructCall()) {
     %_SetValueOf(this, TO_STRING_INLINE(x));
   } else {
     return IS_SYMBOL(x) ?
         %_CallFunction(x, $symbolToString) : TO_STRING_INLINE(x);
@@ skipping 931 matching lines @@
   }
 
   var ss = TO_STRING_INLINE(searchString);
   var pos = 0;
   if (%_ArgumentsLength() > 1) {
     pos = %_Arguments(1);  // position
     pos = $toInteger(pos);
   }
 
   var s_len = s.length;
-  var start = $min($max(pos, 0), s_len);
+  var start = MathMin(MathMax(pos, 0), s_len);
   var ss_len = ss.length;
   if (ss_len + start > s_len) {
     return false;
   }
 
   return %StringIndexOf(s, ss, start) === start;
 }
 
 
 // ES6 draft 04-05-14, section 21.1.3.7
 function StringEndsWith(searchString /* position */) {  // length == 1
   CHECK_OBJECT_COERCIBLE(this, "String.prototype.endsWith");
 
   var s = TO_STRING_INLINE(this);
 
   if (IS_REGEXP(searchString)) {
     throw MakeTypeError(kFirstArgumentNotRegExp, "String.prototype.endsWith");
   }
 
   var ss = TO_STRING_INLINE(searchString);
   var s_len = s.length;
   var pos = s_len;
   if (%_ArgumentsLength() > 1) {
     var arg = %_Arguments(1);  // position
     if (!IS_UNDEFINED(arg)) {
       pos = $toInteger(arg);
     }
   }
 
-  var end = $min($max(pos, 0), s_len);
+  var end = MathMin(MathMax(pos, 0), s_len);
   var ss_len = ss.length;
   var start = end - ss_len;
   if (start < 0) {
     return false;
   }
 
   return %StringLastIndexOf(s, ss, start) === start;
 }
 
 
 // ES6 draft 04-05-14, section 21.1.3.6
 function StringIncludes(searchString /* position */) {  // length == 1
   CHECK_OBJECT_COERCIBLE(this, "String.prototype.includes");
 
   var s = TO_STRING_INLINE(this);
 
   if (IS_REGEXP(searchString)) {
     throw MakeTypeError(kFirstArgumentNotRegExp, "String.prototype.includes");
   }
 
   var ss = TO_STRING_INLINE(searchString);
   var pos = 0;
   if (%_ArgumentsLength() > 1) {
     pos = %_Arguments(1);  // position
     pos = $toInteger(pos);
   }
 
   var s_len = s.length;
-  var start = $min($max(pos, 0), s_len);
+  var start = MathMin(MathMax(pos, 0), s_len);
   var ss_len = ss.length;
   if (ss_len + start > s_len) {
     return false;
   }
 
   return %StringIndexOf(s, ss, start) !== -1;
 }
 
 
 // ES6 Draft 05-22-2014, section 21.1.3.3
@@ skipping 124 matching lines @@
   "blink", StringBlink,
   "bold", StringBold,
   "fixed", StringFixed,
   "italics", StringItalics,
   "small", StringSmall,
   "strike", StringStrike,
   "sub", StringSub,
   "sup", StringSup
 ]);
 
-$stringCharAt = StringCharAtJS;
-$stringIndexOf = StringIndexOfJS;
-$stringSubstring = StringSubstring;
+// -------------------------------------------------------------------
+// Exports
+
+utils.Export(function(to) {
+  to.StringCharAt = StringCharAtJS;
+  to.StringIndexOf = StringIndexOfJS;
+  to.StringSubstring = StringSubstring;
+});
 
 })