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sebmarkbage
b163fbe806
For "render" and "commit" phases we don't give any specific stack atm.
This tries to always provide something useful to say the cause of the
render.
For normal renders this will now show the same thing as the "Event" and
"Update" entries already showed. We stash the task that was used for
those and use them throughout the render and commit phases.
For Suspense (Retry lane) and Idle (Offscreen lane), we don't have any
updates. Instead for those there's a component that left work behind in
previous passes. For those I use the debugTask of the `<Suspense>` or
`<Activity>` boundary to indicate that this was the root of the render.
Similarly when an Action is invoked on a `<form action={...}>` component
using the built-in submit handler, there's no actionable stack in user
space that called it. So we use the stack of the JSX for the form
instead.
DiffTrain build for [4c9c109cea](https://github.com/facebook/react/commit/4c9c109cea9be3622d9d70f81f96e72528bdad16)