Add static to isBuiltin() check in ide-helper:models

[bram-pkg]

Summary

For some reason, the static keyword as a return type, does not return isBuiltin() === true, so a \\ is added. We need to manually add it to the built in check.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Misc. change (internal, infrastructure, maintenance, etc.)

Checklist

• Existing tests have been adapted and/or new tests have been added
• Add a CHANGELOG.md entry
• Update the README.md
• Code style has been fixed via composer fix-style

[mfn]

Can you please add a test?

[bram-pkg]

Ofcourse :)

[bram-pkg]

Tests added @mfn

[mfn]

Thanks, verified the change with the test, that helps a lot!

I've also added the changelog entry.

@barryvdh LGTM!