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, 2 insertions, 2 deletions

diff --git a/test/parallel/test-readline-interface.js b/test/parallel/test-readline-interface.js
index 0bdcfe1bc4..1b0a46eaa2 100644
--- a/test/parallel/test-readline-interface.js
+++ b/test/parallel/test-readline-interface.js
@@ -230,7 +230,7 @@ function isWarned(emitter) {
   });
 
   // sending a multi-byte utf8 char over multiple writes
-  var buf = Buffer('☮', 'utf8');
+  var buf = Buffer.from('☮', 'utf8');
   fi = new FakeInput();
   rli = new readline.Interface({ input: fi, output: fi, terminal: terminal });
   callCount = 0;
@@ -239,7 +239,7 @@ function isWarned(emitter) {
     assert.equal(line, buf.toString('utf8'));
   });
   [].forEach.call(buf, function(i) {
-    fi.emit('data', Buffer([i]));
+    fi.emit('data', Buffer.from([i]));
   });
   assert.equal(callCount, 0);
   fi.emit('data', '\n');