Scala.js compiler crash when using macro api

[yoohaemin]

Play JSON Version

2.6.5

API

scala-js

Operating System

• Ubuntu 16.04 (Linux hostname 4.10.0-37-generic Utility to convert JsResult to Try #41~16.04.1-Ubuntu SMP Fri Oct 6 22:42:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux)
• macOS Sierra

JDK

• openjdk version "1.8.0_131" on Ubuntu
• Oracle JVM 1.8.0_141 on Mac (As far as I remember; I don't use a Mac anymore)

Library Dependencies

Nothing other than play-json and scala-js itself

Expected Behavior

1. Create an ADT (sealed trait hierarchy)
2. Create Format instances of the case classes by calling Json.format[Class] respectively, and have them in the implicit scope
3. Call Json.format[Trait]
4. Format[Trait] should have been created by macros

Actual Behavior

Compiler crash. Additional details are available here.

Reproducible Test Case

I have a separate repo.

[cchantep]

As indicated in the details, the bug occurs in Json macro, but the cause is that the compilation gives an invalid symbol name at first.

A workaround can be added, anyway would be useful to understand by the name is not valid at first.

[cchantep]

Considering that w/o Scala.JS there is no issue, it doesn't seem related : https://github.com/cchantep/scalajs-bugreport/tree/without_scalajs

[cchantep]

A workaround is now on master (investigating why compiler with JS interop give such invalid owner name).