Include Modes in the component stack - #13240
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The SSR test passes. The client one doesn't.
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* Add a test that StrictMode shows up in the component stack The SSR test passes. The client one doesn't. * Include Modes in component stack * Update other tests to include modes
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Alternative to #13109.
Now that the component stack is always attached automatically, this seems like a low-effort way to know the mode without exposing more methods on the isomorphic frame module. This should allow us to parse the stack to determine whether we're in a strict root, and be helpful when debugging (e.g. "where does the strict/async mode start in my tree?").