contrib/nodejs/buffer.js is outdated

[Mikolaj]

This

https://github.com/google/closure-compiler/blob/master/contrib/nodejs/buffer.js

is outdated wrt to

https://npmdoc.github.io/node-npmdoc-buffer/build/apidoc.html#apidoc.element.buffer.Buffer.alloc

resulting in JavaScript exception: TypeError: Buffer.nb is not a function error (JavaScript exception: TypeError: Buffer.$alloc$ is not a function when compiled with --debug) in my code. The following addition (a partial hack) fixed it for me:

/**
 * @param {number=} size
 * @return {Buffer}
 */
buffer.Buffer.alloc;

Note that I get the same error when using https://github.com/dcodeIO/node.js-closure-compiler-externs/blob/master/buffer.js, which is more complete, but even older and so similarly outdated, so instead I report here.

[tjgq]

Would you like to send a PR?

[Mikolaj]

Here you go.