Fix ReactDOM prop ownership checks

[OskarEichler]

Summary

• Use React's shared unbound hasOwnProperty helper for DOM prop iteration and hydration diagnostics.
• Support props objects that shadow hasOwnProperty or do not inherit from Object.prototype.
• Add regressions for custom-element mount/update and hydration diagnostics with a hasOwnProperty prop.

Breaking changes

None. Previously crashing or incomplete prop paths now use the normal ownership checks.

Verification

• Full ReactDOMComponent and ReactDOMHydrationDiff suites: 206 tests passed, including 37 snapshots.
• Changed-source linc, Prettier, and git diff --check passed.

Fixes #37415

[github-actions]

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