lib: Improving deprecation messages

Prefixing all the deprecation messages with `[node]` so that the users
 will know where the message comes from.

lib/_http_outgoing.js

@@ -645,4 +645,4 @@ OutgoingMessage.prototype.flushHeaders = function() {
 
 OutgoingMessage.prototype.flush = util.deprecate(function() {
   this.flushHeaders();
-}, 'flush is deprecated. Use flushHeaders instead.');
+}, '[node] OutgoingMessage.flush is deprecated. Use flushHeaders instead.');

lib/_stream_writable.js

@@ -121,7 +121,7 @@ WritableState.prototype.getBuffer = function writableStateGetBuffer() {
 Object.defineProperty(WritableState.prototype, 'buffer', {
   get: util.deprecate(function() {
     return this.getBuffer();
-  }, '_writableState.buffer is deprecated. Use ' +
+  }, '[node] _writableState.buffer is deprecated. Use ' +
       '_writableState.getBuffer() instead.')
 });
 

lib/buffer.js

@@ -460,7 +460,7 @@ Buffer.prototype.get = util.deprecate(function get(offset) {
   if (offset < 0 || offset >= this.length)
     throw new RangeError('index out of range');
   return this[offset];
-}, '.get() is deprecated. Access using array indexes instead.');
+}, '[node] Buffer.get() is deprecated. Access using array indexes instead.');
 
 
 // XXX remove in v0.13
@@ -469,7 +469,7 @@ Buffer.prototype.set = util.deprecate(function set(offset, v) {
   if (offset < 0 || offset >= this.length)
     throw new RangeError('index out of range');
   return this[offset] = v;
-}, '.set() is deprecated. Set using array indexes instead.');
+}, '[node] Buffer.set() is deprecated. Set using array indexes instead.');
 
 
 // TODO(trevnorris): fix these checks to follow new standard

lib/child_process.js

@@ -272,7 +272,7 @@ var _deprecatedCustomFds = util.deprecate(function(options) {
   options.stdio = options.customFds.map(function(fd) {
     return fd === -1 ? 'pipe' : fd;
   });
-}, 'child_process: customFds option is deprecated, use stdio instead.');
+}, '[node] child_process.customFds option is deprecated, use stdio instead.');
 
 function _convertCustomFds(options) {
   if (options && options.customFds && !options.stdio) {

lib/crypto.js

@@ -681,8 +681,10 @@ function filterDuplicates(names) {
 // Legacy API
 exports.__defineGetter__('createCredentials', util.deprecate(function() {
   return require('tls').createSecureContext;
-}, 'createCredentials() is deprecated, use tls.createSecureContext instead'));
+}, '[node] crypto.createCredentials() is deprecated, ' + 
+'use tls.createSecureContext instead'));
 
 exports.__defineGetter__('Credentials', util.deprecate(function() {
   return require('tls').SecureContext;
-}, 'Credentials is deprecated, use tls.createSecureContext instead'));
+}, '[node] crypto.Credentials is deprecated, ' +
+'use tls.createSecureContext instead'));

lib/http.js

@@ -92,8 +92,8 @@ Client.prototype.request = function(method, path, headers) {
 };
 
 exports.Client = util.deprecate(Client,
-    'http.Client will be removed soon. Do not use it.');
+    '[node] http.Client will be removed soon. Do not use it.');
 
 exports.createClient = util.deprecate(function(port, host) {
   return new Client(port, host);
-}, 'http.createClient is deprecated. Use `http.request` instead.');
+}, '[node] http.createClient is deprecated. Use `http.request` instead.');

lib/module.js

@@ -122,7 +122,7 @@ function tryExtensions(p, exts) {
 
 
 const noopDeprecateRequireDot = util.deprecate(function() {},
-    'warning: require(\'.\') resolved outside the package directory. ' +
+    '[node] warning: require(\'.\') resolved outside the package directory. ' +
     'This functionality is deprecated and will be removed soon.');
 
 

lib/net.js

@@ -1081,10 +1081,11 @@ function Server(options, connectionListener) {
         return null;
       }
       return self._connections;
-    }, 'connections property is deprecated. Use getConnections() method'),
+    }, '[node] Server.connections property is deprecated. ' +
+        'Use Server.getConnections() method'),
     set: util.deprecate(function(val) {
       return (self._connections = val);
-    }, 'connections property is deprecated. Use getConnections() method'),
+    }, '[node] Server.connections property is deprecated.'),
     configurable: true, enumerable: false
   });
 
@@ -1498,7 +1499,7 @@ function emitCloseNT(self) {
 
 Server.prototype.listenFD = util.deprecate(function(fd, type) {
   return this.listen({ fd: fd });
-}, 'listenFD is deprecated. Use listen({fd: <number>}).');
+}, '[node] Server.listenFD is deprecated. Use Server.listen({fd: <number>}).');
 
 Server.prototype._setupSlave = function(socketList) {
   this._usingSlaves = true;

lib/os.js

@@ -46,7 +46,8 @@ exports.tmpDir = exports.tmpdir;
 
 exports.getNetworkInterfaces = util.deprecate(function() {
   return exports.networkInterfaces();
-}, 'getNetworkInterfaces is now called `os.networkInterfaces`.');
+}, '[node] os.getNetworkInterfaces is deprecated. ' +
+'Use `os.networkInterfaces` instead.');
 
 exports.EOL = isWindows ? '\r\n' : '\n';
 

lib/readline.js

@@ -1418,7 +1418,8 @@ function codePointAt(str, index) {
   return code;
 }
 exports.codePointAt = util.deprecate(codePointAt,
-    'codePointAt() is deprecated. Use String.prototype.codePointAt');
+    '[node] readline.codePointAt is deprecated. ' +
+    'Use String.prototype.codePointAt instead');
 
 
 /**

lib/smalloc.js

@@ -4,19 +4,20 @@ const smalloc = require('internal/smalloc');
 const deprecate = require('util').deprecate;
 
 exports.alloc =
-    deprecate(smalloc.alloc, 'smalloc.alloc: Deprecated, use typed arrays');
+    deprecate(smalloc.alloc,
+              '[node] smalloc.alloc is deprecated, use typed arrays');
 
 exports.copyOnto =
     deprecate(smalloc.copyOnto,
-              'smalloc.copyOnto: Deprecated, use typed arrays');
+              '[node] smalloc.copyOnto is deprecated, use typed arrays');
 
 exports.dispose =
     deprecate(smalloc.dispose,
-              'smalloc.dispose: Deprecated, use typed arrays');
+              '[node] smalloc.dispose is deprecated, use typed arrays');
 
 exports.hasExternalData =
     deprecate(smalloc.hasExternalData,
-              'smalloc.hasExternalData: Deprecated, use typed arrays');
+              '[node] smalloc.hasExternalData is deprecated, use typed arrays');
 
 Object.defineProperty(exports, 'kMaxLength', {
   enumerable: true, value: smalloc.kMaxLength, writable: false

lib/sys.js

@@ -8,6 +8,6 @@ const util = require('util');
 
 const setExports = util.deprecate(function() {
   module.exports = util;
-}, 'sys is deprecated. Use util instead.');
+}, '[node] sys module is deprecated. Use util module instead.');
 
 setExports();

lib/tty.js

@@ -19,7 +19,8 @@ exports.setRawMode = util.deprecate(function(flag) {
     throw new Error('can\'t set raw mode on non-tty');
   }
   process.stdin.setRawMode(flag);
-}, 'tty.setRawMode: Use `process.stdin.setRawMode()` instead.');
+}, '[node] tty.setRawMode is depreacted. ' +
+'Use `process.stdin.setRawMode()` instead.');
 
 
 function ReadStream(fd, options) {