http: name anonymous functions in _http_incoming

Refs: https://github.com/nodejs/node/issues/8913
PR-URL: https://github.com/nodejs/node/pull/9055
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

lib/_http_incoming.js

@@ -65,7 +65,7 @@ util.inherits(IncomingMessage, Stream.Readable);
 exports.IncomingMessage = IncomingMessage;
 
 
-IncomingMessage.prototype.setTimeout = function(msecs, callback) {
+IncomingMessage.prototype.setTimeout = function setTimeout(msecs, callback) {
   if (callback)
     this.on('timeout', callback);
   this.socket.setTimeout(msecs);
@@ -73,7 +73,7 @@ IncomingMessage.prototype.setTimeout = function(msecs, callback) {
 };
 
 
-IncomingMessage.prototype.read = function(n) {
+IncomingMessage.prototype.read = function read(n) {
   if (!this._consuming)
     this._readableState.readingMore = false;
   this._consuming = true;
@@ -82,7 +82,7 @@ IncomingMessage.prototype.read = function(n) {
 };
 
 
-IncomingMessage.prototype._read = function(n) {
+IncomingMessage.prototype._read = function _read(n) {
   // We actually do almost nothing here, because the parserOnBody
   // function fills up our internal buffer directly.  However, we
   // do need to unpause the underlying socket so that it flows.
@@ -94,13 +94,14 @@ IncomingMessage.prototype._read = function(n) {
 // It's possible that the socket will be destroyed, and removed from
 // any messages, before ever calling this.  In that case, just skip
 // it, since something else is destroying this connection anyway.
-IncomingMessage.prototype.destroy = function(error) {
+IncomingMessage.prototype.destroy = function destroy(error) {
   if (this.socket)
     this.socket.destroy(error);
 };
 
 
-IncomingMessage.prototype._addHeaderLines = function(headers, n) {
+IncomingMessage.prototype._addHeaderLines = _addHeaderLines;
+function _addHeaderLines(headers, n) {
   if (headers && headers.length) {
     var raw, dest;
     if (this.complete) {
@@ -119,7 +120,7 @@ IncomingMessage.prototype._addHeaderLines = function(headers, n) {
       this._addHeaderLine(k, v, dest);
     }
   }
-};
+}
 
 
 // Add the given (field, value) pair to the message
@@ -129,7 +130,8 @@ IncomingMessage.prototype._addHeaderLines = function(headers, n) {
 // multiple values this way. If not, we declare the first instance the winner
 // and drop the second. Extended header fields (those beginning with 'x-') are
 // always joined.
-IncomingMessage.prototype._addHeaderLine = function(field, value, dest) {
+IncomingMessage.prototype._addHeaderLine = _addHeaderLine;
+function _addHeaderLine(field, value, dest) {
   field = field.toLowerCase();
   switch (field) {
     // Array headers:
@@ -176,12 +178,12 @@ IncomingMessage.prototype._addHeaderLine = function(field, value, dest) {
         dest[field] = value;
       }
   }
-};
+}
 
 
 // Call this instead of resume() if we want to just
 // dump all the data to /dev/null
-IncomingMessage.prototype._dump = function() {
+IncomingMessage.prototype._dump = function _dump() {
   if (!this._dumped) {
     this._dumped = true;
     this.resume();