Looks like our original fix for this only covered those starting with /**, see #456 (comment) (@apaatsio).
I think this should be reopened. I'm still experiencing this.

Dart Code: 2.24.0
Dart VM version: 2.1.2-dev.0.0.flutter-0a7dcf17eb (Tue Feb 12 01:59:15 2019 +0000) on "linux_x64"
VSCode: 1.31.1