Can no longer call a function named `async`

Looks like the fix to https://github.com/google/closure-compiler/issues/2244 resulted in a regression in that it disallows calling a function called async.

Example:

var x = {async: function(){return 3;}}
x.async()

This now results in the following error:

Parse error. No newline allowed before '=>'

[anmonteiro]

The ClojureScript compiler is heavy reliant on the Google Closure Compiler. We’re really excited about what the recent developments in processing CommonJS and ES6 modules represent for our community. However, introducing this change relating to the async keyword simply breaks every ClojureScript project out there using the immensely popular core.async library. My opinion is that, by not reserving the keyword for that usage, we could achieve backwards compatibility.

This has come up after we upgraded to the February release and is now a blocker to future upgrades.

At the end of the day, this is obviously your project and you choose how to run it. I just wanted to give my perspective on what the consequences are for ClojureScript.

[brad4d]

Sounds like this is much more of a problem than yield was. I’m working on fixing it.