Grails user library doesn't recognize Maven modules in same project

Steps to reproduce:

1. Create a new project.
2. Create a Maven module with some Java class in it, and install it in the local repository.
3. Create a Grails module that references the Maven module as a dependency.
4. Write some Groovy code that uses a class in the Maven module.
5. In the Groovy code, try "go to definition" on the class from the Maven module.

Expected:
- IDEA navigates to the source code in the Maven module.

Actual:
- IDEA navigates to the compiled JAR in ~/.grails/ivy-cache

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*Imported from [IDEA-89023](https://youtrack.jetbrains.com/issue/IDEA-89023) · Type: Bug · Votes: 1*
*Comments, attachments, dates and reporter are not part of the export — follow the link above for the full history.*

Reproduce the Maven-module and Grails-module setup, then start at the dependency resolution and “go to definition” behavior described in the issue. Trace why navigation selects the compiled JAR in ~/.grails/ivy-cache instead of the Maven module source; done means the class reference navigates to that source code.

Written by the indexing model from the issue text.