Add hook in runtime-libraries/generated code to disable printing of error messages of the kind "Could not create task for property … on term … ".

Submitted by Vlad Vergu on 20 May 2014 at 14:48

Implemented in https://github.com/metaborg/runtime-libraries/commit/322e99d2cccb0625327dd1402a9cca460292ac71. By default it does not spam the console, but instead shows warnings in the editor. If you’d like to turn on the console spamming again, define properties-console-msg-enable = id. If you want to turn off warnings in the editor, define properties-warning-task-disable = id.