Graph control tests more

[oatkiller]

Summary

Based on: #74680

• adds a new matcher `toYieldObjectEqual
• changes language for the specs a bit
• resolves wrapper before use

Notes

This type of test should be more robust. Let's discuss a way to make it easier to write them this way.

Checklist

Delete any items that are not applicable to this PR.

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• This was checked for keyboard-only and screenreader accessibility
• This renders correctly on smaller devices using a responsive layout. (You can test this in your browser
• This was checked for cross-browser compatibility

For maintainers

• This was checked for breaking API changes and was labeled appropriately

[bkimmel]

❔ Not sure about making this even more complicated. What does it do that toYieldEqualTo doesn't? Would be helpful to read in a comment here.

[oatkiller]

yes

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 3de7be9

Build metrics

async chunks size

id	value	diff	baseline
securitySolution	7.3MB	+235.0B	7.3MB

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