Fix diff highlight of symbol-keyed object.

[WeiAnAn]

Summary

Fixes #9432.

Use Object.getOwnPropertySymbols to traverse object's symbol key can fix this issue.

Thanks @pedrottimark to point out this edge case.

Test plan

Add symbol-keyed object tests.

[SimenB]

Thank you! 🙂

[codecov-io]

Codecov Report

Merging #9499 into master will increase coverage by 0.01%.
The diff coverage is 62.5%.

@@            Coverage Diff             @@
##           master    #9499      +/-   ##
==========================================
+ Coverage   65.01%   65.03%   +0.01%     
==========================================
  Files         283      283              
  Lines       12135    12148      +13     
  Branches     3003     3009       +6     
==========================================
+ Hits         7890     7900      +10     
- Misses       3604     3606       +2     
- Partials      641      642       +1

Impacted Files	Coverage Δ
packages/jest-config/src/Descriptions.ts	100% <ø> (ø)	⬆️
packages/jest-config/src/normalize.ts	77.87% <100%> (+0.12%)	⬆️
packages/jest-resolve/src/index.ts	45.94% <57.14%> (+0.69%)	⬆️
packages/expect/src/utils.ts	96.22% <0%> (+1.25%)	⬆️

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[jeysal]

This looks very solid, thanks @WeiAnAn!

[pedrottimark]

Thank you very much for clear code and your willingness to add tests to the expect package.

[github-actions]

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