Grails: Complete HQL param names for DomainClass.executeQuery(...)

Example:
```
Product.executeQuery("""
select distinct pr
from Product pr, UpdateDepend ud
where ud.depend in elements(pr.depends)
and ud.update.plugin = :plugin
order by pr.id
""", [''])
```

---

*Imported from [IDEA-79705](https://youtrack.jetbrains.com/issue/IDEA-79705) · Type: Feature · Votes: 0*
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Start with the DomainClass.executeQuery(...) entry point and the HQL example in the issue, then locate the plugin code responsible for parameter-name completion. Verify the change by checking that the caret position in the example suggests the named parameter plugin.

Written by the indexing model from the issue text.