buffer: add .from(), .alloc() and .allocUnsafe()

Several changes:

* Soft-Deprecate Buffer() constructors
* Add `Buffer.from()`, `Buffer.alloc()`, and `Buffer.allocUnsafe()`
* Add `--zero-fill-buffers` command line option
* Add byteOffset and length to `new Buffer(arrayBuffer)` constructor
* buffer.fill('') previously had no effect, now zero-fills
* Update the docs

PR-URL: https://github.com/nodejs/node/pull/4682
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/test/parallel/test-tls-client-destroy-soon.js b/test/parallel/test-tls-client-destroy-soon.js
index 554ac686db..a845290474 100644
--- a/test/parallel/test-tls-client-destroy-soon.js
+++ b/test/parallel/test-tls-client-destroy-soon.js
@@ -19,12 +19,10 @@ var options = {
   cert: fs.readFileSync(common.fixturesDir + '/keys/agent2-cert.pem')
 };
 
-var big = new Buffer(2 * 1024 * 1024);
+var big = Buffer.alloc(2 * 1024 * 1024, 'Y');
 var connections = 0;
 var bytesRead = 0;
 
-big.fill('Y');
-
 // create server
 var server = tls.createServer(options, function(socket) {
   socket.end(big);