Hide Math function implementations in a closure.

src/arraybuffer.js

 // Copyright 2013 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.
 
 "use strict";
 
 var $ArrayBuffer = global.ArrayBuffer;
 
 // -------------------------------------------------------------------
 
@@ skipping 21 matching lines @@
                         ['ArrayBuffer.prototype.slice', this]);
   }
 
   var relativeStart = TO_INTEGER(start);
   if (!IS_UNDEFINED(end)) {
     end = TO_INTEGER(end);
   }
   var first;
   var byte_length = %_ArrayBufferGetByteLength(this);
   if (relativeStart < 0) {
-    first = MathMax(byte_length + relativeStart, 0);
+    first = $max(byte_length + relativeStart, 0);
   } else {
-    first = MathMin(relativeStart, byte_length);
+    first = $min(relativeStart, byte_length);
   }
   var relativeEnd = IS_UNDEFINED(end) ? byte_length : end;
   var fin;
   if (relativeEnd < 0) {
-    fin = MathMax(byte_length + relativeEnd, 0);
+    fin = $max(byte_length + relativeEnd, 0);
   } else {
-    fin = MathMin(relativeEnd, byte_length);
+    fin = $min(relativeEnd, byte_length);
   }
 
   if (fin < first) {
     fin = first;
   }
   var newLen = fin - first;
   // TODO(dslomov): implement inheritance
   var result = new $ArrayBuffer(newLen);
 
   %ArrayBufferSliceImpl(this, result, first);
@@ skipping 23 matching lines @@
   InstallFunctions($ArrayBuffer, DONT_ENUM, $Array(
       "isView", ArrayBufferIsViewJS
   ));
 
   InstallFunctions($ArrayBuffer.prototype, DONT_ENUM, $Array(
       "slice", ArrayBufferSlice
   ));
 }
 
 SetUpArrayBuffer();