misc change

Author: aditi-khare-mongoDB

lib/cast/int32.js

@@ -1,7 +1,6 @@
 'use strict';
 
 const assert = require('assert');
-const BSON = require('bson');
 
 /**
  * Given a value, cast it to a Int32, or throw an `Error` if the value
@@ -21,7 +20,7 @@ module.exports = function castInt32(val) {
     return null;
   }
 
-  const coercedVal = val instanceof BSON.Long ? val.toNumber() : Number(val);
+  const coercedVal = val._bsontype === 'Long' ? val.toNumber() : Number(val);
 
   const INT32_MAX = 0x7FFFFFFF;
   const INT32_MIN = -0x80000000;